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Noh ES, Hwang IT. Triglyceride-glucose-alanine aminotransferase index: A noninvasive serum predictor for identifying the severity of pediatric nonalcoholic fatty liver disease. Medicine (Baltimore) 2024; 103:e38241. [PMID: 38941428 DOI: 10.1097/md.0000000000038241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/30/2024] Open
Abstract
We hypothesized that the triglyceride-glucose (TyG)-alanine aminotransferase (ALT) index, which combines the TyG index with ALT, may enhance sensitivity and specificity in detecting the severity of nonalcoholic fatty liver disease (NAFLD). A total of 131 NAFLD patients with a mean age of 11.5 ± 2.29 years were enrolled, and severity was assessed by ultrasound fatty liver index (US-FLI) scoring. The TyG-ALT index was defined as ln(fasting triglyceride [mg/dL] × fasting glucose [mg/dL] × ALT [IU/L]/2). Multiple linear regression analysis revealed a significant association between the TyG-ALT index and US-FLI (β = 0.317, P < .001) after controlling for sex, age, and body mass index. The TyG-ALT index showed a more stable and superior ability to detect the severity of NAFLD compared to both ALT and the TyG index. The area under the curve values, listed in the order of ALT, TyG index, and TyG-ALT index, were as follows: 0.737 (P < .001), 0.599 (P = .055), and 0.704 (P < .001) at US-FLI ≥ 4 points; 0.717 (P < .001), 0.720 (P < .001), and 0.775 (P < .001) at US-FLI ≥ 5 points; and 0.689 (P < .05), 0.748 (P < .01), and 0.775 (P < .001) at US-FLI ≥ 6 points. The TyG-ALT index is associated with US-FLI score and superior to both ALT and the TyG index in predicting NAFLD severity. These findings indicate the potential of the TyG-ALT index in the management of pediatric NAFLD progression.
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Affiliation(s)
- Eu-Seon Noh
- Department of Pediatrics, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Republic of Korea
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Aitokari L, Lahti S, Kivelä L, Riekki H, Hiltunen P, Vuorela N, Viitasalo A, Soininen S, Huhtala H, Lakka T, Kurppa K. Alanine aminotransferase cutoffs for the pediatric fatty liver disease: Major impact of the reference population. J Pediatr Gastroenterol Nutr 2024; 78:488-496. [PMID: 38314943 DOI: 10.1002/jpn3.12040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 08/07/2023] [Accepted: 10/25/2023] [Indexed: 02/07/2024]
Abstract
OBJECTIVES AND STUDY The often-recommended alanine aminotransferase (ALT) cutoffs (girls 21 U/l, boys 25 U/l) are based on a NHANES cohort. A novel concept of metabolic dysfunction associated steatotic liver disease (MASLD) emphasizes the role of ALT. We tested the prevalence of increased ALT and MASLD in children with overweight or obesity applying population-based and NHANES-based cut-offs. METHODS Six- to seventeen-year-old children underwent data collection in a prospective Physical Activity and Nutrition in Children (PANIC) study. ALT 95th percentiles were calculated from 1167 separate measurements considering various confounders. Test cohort comprised 1044 children with overweight/obesity. RESULTS ALT values increased at puberty onset (p = 0.031) and correlated negatively with age in girls (r = -0.222, p < 0.001). Particularly overall and central obesity increased ALT, whereas underweight or metabolic abnormalities had smaller effect. After applying the tested exclusions, the age-related ALT 95th percentiles were 24-29 U/l for girls and 29-32 U/l for boys. In 6-8-year-old children with overweight/obesity, the prevalence of increased ALT and MASLD were 21.6% and 2.4% with age-specific PANIC cutoffs. In older children, when NHANES-based cutoffs were used, there was a trend for higher prevalence of increased ALT and MASLD in all age groups for both sexes, reaching significance for increased ALT in 12-16-year-old boys (NHANES 63.5%, 95% confidence interval [CI]: 56.4%-70.0% vs. PANIC 47.1%, 95% CI [40.1%-54.2%]) and 9-11-year-old girls (60.0% [49.4%-69.8%] vs. 31.8% [22.8%-42.3%]), respectively. Increased ALT/MASLD were more common in boys than in girls, and in boys these increased with age, whereas in girls these peaked at age 9-12 years. CONCLUSION A reference population impacts on the prevalence of increased ALT and MASLD. Considering this help optimizing screening while avoiding unnecessary investigations and surveillance. The prospective part of this study is registered in clinicaltrials.gov; identifier NCT01803776.
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Affiliation(s)
- Linnea Aitokari
- Tampere Center for Child, Adolescent and Maternal Health Research, Tampere University, Tampere, Finland
| | - Siiri Lahti
- Tampere Center for Child, Adolescent and Maternal Health Research, Tampere University, Tampere, Finland
| | - Laura Kivelä
- Tampere Center for Child, Adolescent and Maternal Health Research, Tampere University, Tampere, Finland
- Department of Pediatrics, Tampere University Hospital, Tampere, Finland
- Children's Hospital and Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Hanna Riekki
- Tampere Center for Child, Adolescent and Maternal Health Research, Tampere University, Tampere, Finland
| | - Pauliina Hiltunen
- Department of Pediatrics, Tampere University Hospital, Tampere, Finland
| | - Nina Vuorela
- Tampere Center for Child, Adolescent and Maternal Health Research, Tampere University, Tampere, Finland
| | - Anna Viitasalo
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - Sonja Soininen
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
- Physician and Nursing Services, Health and Social Services Centre, Wellbeing Services County of North Savo, Varkaus, Finland
| | - Heini Huhtala
- Faculty of Social Sciences, Tampere University, Tampere, Finland
| | - Timo Lakka
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
- Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital, Kuopio, Finland
- Kuopio Research Institute of Exercise Medicine, Kuopio, Finland
| | - Kalle Kurppa
- Tampere Center for Child, Adolescent and Maternal Health Research, Tampere University, Tampere, Finland
- Department of Pediatrics, Tampere University Hospital, Tampere, Finland
- The University Consortium of Seinäjoki, Seinäjoki, Finland
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Chiou FK, Goh L, Ho CWW, Rajan C, Logarajah V, Ng LQ, Phua KB. Clinical profile, referral trends, and real-world application of vibration-controlled transient elastography in children with non-alcoholic fatty liver disease in Singapore. JGH Open 2024; 8:e13020. [PMID: 38268961 PMCID: PMC10805478 DOI: 10.1002/jgh3.13020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/07/2023] [Accepted: 12/01/2023] [Indexed: 01/26/2024]
Abstract
Background and Aim Pediatric non-alcoholic fatty liver disease (NAFLD) is a progressive disorder that is increasing in incidence globally. The study aims to describe the clinical profile and longitudinal outcome, including the utility of vibration-controlled transient elastography (VCTE), in children with NAFLD at a single tertiary liver unit in Singapore. Methods Retrospective review of patients aged 0-18 years referred for NAFLD from 2003 to 2020 was conducted. Diagnosis was based on persistent elevation of alanine transaminase ≥2× the upper limit of normal in at-risk patients, and/or radiologic detection of hepatic steatosis, with the exclusion of other etiologies. VCTE-derived liver stiffness measurements (LSMs) ≤7.0 , 7.1-9.0, and ≥9.1 kPa were used to differentiate normal (F0-F1), significant fibrosis (F2), and advanced fibrosis (F3-F4), respectively. Results The study included 210 patients (72.4% male, mean age 11.6 years). New cases increased from 1.7/1000 referrals in 2003-2008 to 12.7 and 24.5/1000 referrals in 2009-2014 and 2015-2020, respectively. Significant proportion had dyslipidemia (41.4%), impaired glucose tolerance/diabetes (IGT/DM, 26.7%), and hypertension (17.1%). Only 6.2% had resolution of NAFLD after a mean follow-up of 3.7 years. Based on VCTE (n = 65), 41.5% had normal LSM, while 26.2% and 32.3% had increased likelihood of significant and advanced fibrosis, respectively. Age ≥16 years (odds ratio [OR] 8.9), IGT/DM (OR 6.5), and aspartate transaminase >70 U/L (OR 11.0) were independent risk factors associated with increased likelihood of advanced fibrosis. Conclusion Incidence of pediatric NAFLD has increased dramatically in Singapore. Based on LSM estimation, pediatric NAFLD may be associated with an increased risk of developing advanced fibrosis by late adolescence.
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Affiliation(s)
- Fang Kuan Chiou
- Gastroenterology, Hepatology & Nutrition Service, Paediatric MedicineKK Women's and Children's HospitalSingaporeSingapore
| | - Lynette Goh
- Gastroenterology, Hepatology & Nutrition Service, Paediatric MedicineKK Women's and Children's HospitalSingaporeSingapore
| | - Christopher Wen Wei Ho
- Gastroenterology, Hepatology & Nutrition Service, Paediatric MedicineKK Women's and Children's HospitalSingaporeSingapore
| | - Charanya Rajan
- Gastroenterology, Hepatology & Nutrition Service, Paediatric MedicineKK Women's and Children's HospitalSingaporeSingapore
| | - Veena Logarajah
- Gastroenterology, Hepatology & Nutrition Service, Paediatric MedicineKK Women's and Children's HospitalSingaporeSingapore
| | - Lay Queen Ng
- Gastroenterology, Hepatology & Nutrition Service, Paediatric MedicineKK Women's and Children's HospitalSingaporeSingapore
| | - Kong Boo Phua
- Gastroenterology, Hepatology & Nutrition Service, Paediatric MedicineKK Women's and Children's HospitalSingaporeSingapore
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Yoon JS, Lim KJ, Hwang IT. Usefulness of two-dimensional shear wave elastography in the assessment of non-alcoholic fatty liver disease in children and adolescents. Sci Rep 2023; 13:10062. [PMID: 37344574 DOI: 10.1038/s41598-023-37281-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 06/19/2023] [Indexed: 06/23/2023] Open
Abstract
Two-dimensional shear wave elastography (2D-SWE) evaluates liver stiffness using a non-invasive method, but studies in the paediatric population are rare. This study evaluated the role of 2D-SWE in the diagnosis and severity of paediatric non-alcoholic fatty liver disease (NAFLD). In total, 131 patients with NAFLD and 25 healthy controls were enrolled in this study. The diagnosis and severity of NAFLD were initially assessed using the ultrasound fatty liver index (US-FLI), and all participants underwent 2D-SWE. US-FLI semi-quantitatively measures the severity of NAFLD on a scale of 2-8. The assessment of liver stiffness measurement (LSM) by 2D-SWE is presented in kilopascals (kPa). The NAFLD group was characterised by significantly higher LSM (4.40 ± 0.90 kPa) than the control group (3.76 ± 0.28 kPa) (P < 0.001). 2D-SWE significantly correlated with age, height, weight, body mass index, glucose, aspartate aminotransferase, alanine aminotransferase, high-density lipoprotein cholesterol, US-FLI, and triglyceride-glucose index (P < 0.001). In the receiver operating characteristic curve analysis, the area under the curve of LSM for predicting US-FLI ≥ 2 and ≥ 6 was 0.784 (P < 0.001) and 0.819 (P < 0.001), respectively. In conclusion, we suggest that 2D-SWE can be used as a non-invasive diagnostic tool for diagnosing and assessing the severity of paediatric NAFLD.
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Affiliation(s)
- Jong Seo Yoon
- Department of Paediatrics, Hallym University Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, South Korea
| | - Kyoung Ja Lim
- Department of Radiology, Hallym University Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, 05355, South Korea.
| | - Il Tae Hwang
- Department of Paediatrics, Hallym University Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, South Korea
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Riekki H, Aitokari L, Kivelä L, Lahti S, Hiltunen P, Vuorela N, Huhtala H, Lakka TA, Kurppa K. Prevalence and associated factors of metabolic-associated fatty liver disease in overweight Finnish children and adolescents. Front Endocrinol (Lausanne) 2023; 14:1090344. [PMID: 37409224 PMCID: PMC10319394 DOI: 10.3389/fendo.2023.1090344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Accepted: 04/04/2023] [Indexed: 07/07/2023] Open
Abstract
Introduction Data on the prevalence of pediatric fatty liver disease remain limited, partly due to challenges in diagnosis. A novel concept of metabolic-associated fatty liver disease (MAFLD) makes it possible to establish the diagnosis in overweight children with sufficiently elevated alanine aminotransferase (ALT). We investigated the prevalence, risk factors, and metabolic co-morbidities of MAFLD in a large group of overweight children. Methods Data on 703 patients aged 2-16 years examined due to overweight in different levels of healthcare in 2002-2020 were collected retrospectively from patient records. MAFLD was here defined as ALT >2x reference (>44 U/l in girls and >50 U/l in boys) in overweight children according to recently updated definition. Patients with MAFLD and without it were compared, and subgroup analyses were conducted among boys and girls. Results Median age was 11.5 years, and 43% were girls. Altogether 11% were overweight, 42% obese and 47% severely obese. Abnormal glucose metabolism was present in 44%, dyslipidemia in 51%, hypertension in 48% and type 2 diabetes (T2D) in 2%. MAFLD prevalence varied between 14-20% in examined years without significant change (p=0.878). The pooled prevalence over the years was 15% (boys 18%, girls 11%; p=0.018), peaking in girls at early puberty and increasing in boys with age and puberty. Associated factors in boys were T2D (OR 7.55, 95% CI 1.23-46.2), postpubertal stage (5.39, 2.26-12.8), increased fasting insulin (3.20, 1.44-7.10), hypertriglyceridemia (2.97, 1.67-5.30), hyperglycemia (2.88, 1.64-5.07), decreased high-density lipoprotein (HDL) cholesterol (2.16, 1.18-3.99), older age (1.28, 1.15-1.42) and higher body-mass-index (1.01, 1.05-1.15), and in girls T2D (18.1, 3.16-103), hypertriglyceridemia (4.28, 1.99-9.21), and decreased HDL (4.06, 1.87-8.79). Conclusion Prevalence of MAFLD was 15%, with no statistically significant increase in the 2000s. The condition was associated in general with male gender, puberty stage and disturbances in glucose and lipid metabolism, and higher age and BMI in boys.
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Affiliation(s)
- Hanna Riekki
- Tampere Center for Child, Adolescent and Maternal Health Research, Tampere University, Tampere, Finland
| | - Linnea Aitokari
- Tampere Center for Child, Adolescent and Maternal Health Research, Tampere University, Tampere, Finland
- Celiac Disease Research Center, Tampere University, Tampere, Finland
| | - Laura Kivelä
- Tampere Center for Child, Adolescent and Maternal Health Research, Tampere University, Tampere, Finland
- Celiac Disease Research Center, Tampere University, Tampere, Finland
- Children’s Hospital and Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Siiri Lahti
- Tampere Center for Child, Adolescent and Maternal Health Research, Tampere University, Tampere, Finland
| | - Pauliina Hiltunen
- Department of Pediatrics, Tampere University Hospital, Tampere, Finland
| | - Nina Vuorela
- Tampere Center for Child, Adolescent and Maternal Health Research, Tampere University, Tampere, Finland
- Department of Pediatrics, Tampere University Hospital, Tampere, Finland
| | - Heini Huhtala
- Faculty of Social Sciences, Tampere University, Tampere, Finland
| | - Timo A. Lakka
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, Kuopio, Finland
- Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital, Kuopio, Finland
- Kuopio Research Institute of Exercise Medicine, Kuopio, Finland
| | - Kalle Kurppa
- Tampere Center for Child, Adolescent and Maternal Health Research, Tampere University, Tampere, Finland
- Celiac Disease Research Center, Tampere University, Tampere, Finland
- Department of Pediatrics, Tampere University Hospital, Tampere, Finland
- University Consortium of Seinäjoki, Seinäjoki, Finland
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Huh Y, Cho YJ, Nam GE. Recent Epidemiology and Risk Factors of Nonalcoholic Fatty Liver Disease. J Obes Metab Syndr 2022; 31:17-27. [PMID: 35332111 PMCID: PMC8987457 DOI: 10.7570/jomes22021] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 03/22/2022] [Accepted: 03/23/2022] [Indexed: 12/28/2022] Open
Abstract
Because of the global obesity epidemic, the incidence and prevalence of nonalcoholic fatty liver disease (NAFLD) have increased worldwide, including among Koreans. Recently, the incidence rate of NAFLD in Korea was reported to be 45.1 per 1,000 person-years, and the prevalence as approximately 30% depending on the diagnostic methods used. The incidence of advanced fibrosis and hepatocellular carcinoma, as well as all-cause and liver-related mortality in NAFLD patients has increased substantially, imposing considerable public health costs in Korea. Genetic, demographic, environmental, and clinical factors are involved in the pathogenesis of NAFLD. Some genetic variants, such as patatin-like phospholipase domain-containing 3 (PNPLA-3) and sorting and assembly machinery component 50 (SAMM-50), play a major role in the occurrence of NAFLD. The risk of NAFLD and fibrosis increases with advancing age and in men. Nutritional factors, inadequate exercise, and sleep duration are also associated with increased risk of NAFLD. Obesity is a major risk factor for NAFLD; however, NAFLD in lean individuals has been noted in recent studies. Insulin resistance, type 2 diabetes, and metabolic syndrome and its components are closely associated with NAFLD development and liver fibrosis with various underlying mechanisms. Sarcopenia likely shares a common pathophysiology with NAFLD. The rapidly increasing incidence and prevalence of NAFLD and its complications, as well as the associated healthcare burden, warrant early assessment of NAFLD and its risk factors to prevent NAFLD-related complications in high risk groups.
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Affiliation(s)
- Youn Huh
- Department of Family Medicine, Uijeongbu Eulji Medical Center, Eulji University School of Medicine, Uijeongbu, Korea
| | - Yoon Jeong Cho
- Department of Family Medicine, Daegu Catholic University School of Medicine, Daegu, Korea
| | - Ga Eun Nam
- Department of Family Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
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Kang M, Choi SY, Jung M. Dietary intake and nutritional status of Korean children and adolescents: a review of national survey data. Clin Exp Pediatr 2021; 64:443-458. [PMID: 33445834 PMCID: PMC8426097 DOI: 10.3345/cep.2020.01655] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 12/06/2020] [Accepted: 12/07/2020] [Indexed: 12/11/2022] Open
Abstract
In Korea, several national cross-sectional surveys monitor the diet, nutritional status, and health status of children. This continual dedicated national surveillance system contributes to the identification of nutritional and health issues, establishment of public health policies, and development of nutrition recommendations. This paper provides recent information about the Korea National Health and Nutrition Examination Survey and the Korean Youth Risk Behavior Web-based Survey and describes key nationwide survey findings published in the last 5 years on infant feeding practices and the dietary intake and nutritional status of Korean infants, children, and adolescents. There have been increasing trends in children, and teenagers who skip breakfast, eat fast food, consume sugary drinks, have vitamin D deficiency, and are obese. This review will inform pediatricians, nutritionists, and other health care practitioners who track children's growth and development. It may also help researchers and policymakers identify diet-related policies and strategies for chronic disease prevention in Korean infants, children, and adolescents.
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Affiliation(s)
- Minji Kang
- BK21 FOUR Education and Research Team for Sustainable Food & Nutrition, Department of Food and Nutrition, College of Human Ecology, Seoul National University, Seoul, Korea
| | - So Yoon Choi
- Department of Pediatrics, Kosin University Gospel Hospital, Kosin University School of Medicine, Busan, Korea
| | - Minyoung Jung
- Department of Pediatrics, Kosin University Gospel Hospital, Kosin University School of Medicine, Busan, Korea
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Kang SH, Lee HW, Yoo JJ, Cho Y, Kim SU, Lee TH, Jang BK, Kim SG, Ahn SB, Kim H, Jun DW, Choi JI, Song DS, Kim W, Jeong SW, Kim MY, Koh H, Jeong S, Lee JW, Cho YK. KASL clinical practice guidelines: Management of nonalcoholic fatty liver disease. Clin Mol Hepatol 2021; 27:363-401. [PMID: 34154309 PMCID: PMC8273632 DOI: 10.3350/cmh.2021.0178] [Citation(s) in RCA: 139] [Impact Index Per Article: 46.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 06/22/2021] [Indexed: 02/06/2023] Open
Affiliation(s)
- Seong Hee Kang
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Hye Won Lee
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul Korea
| | - Jeong-Ju Yoo
- Department of Internal Medicine, SoonChunHyang University Bucheon Hospital, Bucheon, Korea
| | - Yuri Cho
- Center for Liver and Pancreatobiliary Cancer, National Cancer Center, Goyang, Korea
| | - Seung Up Kim
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul Korea
| | - Tae Hee Lee
- Department of Internal Medicine, Konyang University College of Medicine, Daejeon, Korea
| | - Byoung Kuk Jang
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea
| | - Sang Gyune Kim
- Department of Internal Medicine, SoonChunHyang University Bucheon Hospital, Bucheon, Korea
| | - Sang Bong Ahn
- Department of Internal Medicine, Nowon Eulji Medical Center, Eulji University School of Medicine, Seoul, Korea
| | - Haeryoung Kim
- Department of Pathology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Dae Won Jun
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Joon-Il Choi
- Department of Radiology, Seoul St.Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Do Seon Song
- Department of Internal Medicine, St. Vincent’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Won Kim
- Department of Internal Medicine, Seoul Metropolitan Government Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Soung Won Jeong
- Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Korea
| | - Moon Young Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Hong Koh
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Yonsei University College of Medicine, Severance Children's Hospital, Seoul, Korea
| | - Sujin Jeong
- Division of Pediatric Gastroenterology Hepatology and Nutrition, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Jin-Woo Lee
- Department of Internal Medicine, Inha University Hospital, Inha University School of Medicine, Incheon, Korea
| | - Yong Kyun Cho
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
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