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Nakayama J, Hertzberg VS, Ho JC, Simpson RL, Cartwright EJ. Hepatitis C care cascade in a large academic healthcare system, 2012 to 2018. Medicine (Baltimore) 2023; 102:e32859. [PMID: 36897716 PMCID: PMC9997763 DOI: 10.1097/md.0000000000032859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 01/17/2023] [Indexed: 03/11/2023] Open
Abstract
To determine the hepatitis C virus (HCV) care cascade among persons who were born during 1945 to 1965 and received outpatient care on or after January 2014 at a large academic healthcare system. Deidentified electronic health record data in an existing research database were analyzed for this study. Laboratory test results for HCV antibody and HCV ribonucleic acid (RNA) indicated seropositivity and confirmatory testing. HCV genotyping was used as a proxy for linkage to care. A direct-acting antiviral (DAA) prescription indicated treatment initiation, an undetectable HCV RNA at least 20 weeks after initiation of antiviral treatment indicated a sustained virologic response. Of the 121,807 patients in the 1945 to 1965 birth cohort who received outpatient care between January 1, 2014 and June 30, 2017, 3399 (3%) patients were screened for HCV; 540 (16%) were seropositive. Among the seropositive, 442 (82%) had detectable HCV RNA, 68 (13%) had undetectable HCV RNA, and 30 (6%) lacked HCV RNA testing. Of the 442 viremic patients, 237 (54%) were linked to care, 65 (15%) initiated DAA treatment, and 32 (7%) achieved sustained virologic response. While only 3% were screened for HCV, the seroprevalence was high in the screened sample. Despite the established safety and efficacy of DAAs, only 15% initiated treatment during the study period. To achieve HCV elimination, improved HCV screening and linkage to HCV care and DAA treatment are needed.
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Affiliation(s)
- Jasmine Nakayama
- Emory University Nell Hodgson Woodruff School of Nursing, Atlanta, GA
| | - Vicki S. Hertzberg
- Emory University Nell Hodgson Woodruff School of Nursing, Atlanta, GA
- Emory University Department of Computer Science, Atlanta, GA
| | - Joyce C. Ho
- Emory University Department of Computer Science, Atlanta, GA
| | - Roy L. Simpson
- Emory University Nell Hodgson Woodruff School of Nursing, Atlanta, GA
| | - Emily J. Cartwright
- Emory University School of Medicine, Atlanta, GA
- Atlanta VA Medical Center, Atlanta, GA
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2
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Nguyen HA, Cooke GS, Day JN, Flower B, Phuong LT, Hung TM, Dung NT, Khoa DB, Hung LM, Kestelyn E, Thwaites GE, Chau NVV, Turner HC. The direct-medical costs associated with interferon-based treatment for Hepatitis C in Vietnam. Wellcome Open Res 2020; 4:129. [PMID: 32734002 PMCID: PMC7372532 DOI: 10.12688/wellcomeopenres.15408.2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/02/2020] [Indexed: 02/02/2023] Open
Abstract
Background: Injectable interferon-based therapies have been used to treat hepatitis C virus (HCV) infection since 1991. International guidelines have now moved away from interferon-based therapy towards direct-acting antiviral (DAA) tablet regimens, because of their superior efficacy, excellent side-effect profiles, and ease of administration. Initially DAA drugs were prohibitively expensive for most healthcare systems. Access is now improving through the procurement of low-cost, generic DAAs acquired through voluntary licenses. However, HCV treatment costs vary widely, and many countries are struggling with DAA treatment scale-up. This is not helped by the limited cost data and economic evaluations from low- and middle-income countries to support HCV policy decisions. We conducted a detailed analysis of the costs of treating chronic HCV infection with interferon-based therapy in Vietnam. Understanding these costs is important for performing necessary economic evaluations of novel treatment strategies. Methods: We conducted an analysis of the direct medical costs of treating HCV infection with interferon alpha (IFN) and pegylated-interferon alpha (Peg-IFN), in combination with ribavirin, from the health sector perspective at the Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam, in 2017. Results: The total cost of the IFN treatment regimen was estimated to range between US$1,120 and US$1,962. The total cost of the Peg-IFN treatment regimen was between US$2,156 and US$5,887. Drug expenses were the biggest contributor to the total treatment cost (54-89%) and were much higher for the Peg-IFN regimen. Conclusions: We found that treating HCV with IFN or Peg-IFN resulted in significant direct medical costs. Of concern, we found that all patients incurred substantial out-of-pocket costs, including those receiving the maximum level of support from the national health insurance programme. This cost data highlights the potential savings and importance of increased access to generic DAAs in low- and middle-income countries and will be useful within future economic evaluations.
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Affiliation(s)
| | - Graham S. Cooke
- Division of Infectious Diseases, Imperial College London, London, UK
| | - Jeremy N. Day
- Oxford University Clinical Research Unit, Ho Chi Minh, Vietnam
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Barnaby Flower
- Oxford University Clinical Research Unit, Ho Chi Minh, Vietnam
| | | | - Trinh Manh Hung
- Oxford University Clinical Research Unit, Ho Chi Minh, Vietnam
| | | | - Dao Bach Khoa
- Hospital for Tropical Diseases, Ho Chi Minh, Vietnam
| | - Le Manh Hung
- Hospital for Tropical Diseases, Ho Chi Minh, Vietnam
| | - Evelyne Kestelyn
- Oxford University Clinical Research Unit, Ho Chi Minh, Vietnam
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Guy E. Thwaites
- Oxford University Clinical Research Unit, Ho Chi Minh, Vietnam
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | | | - SEARCH Investigators
- Oxford University Clinical Research Unit, Ho Chi Minh, Vietnam
- Division of Infectious Diseases, Imperial College London, London, UK
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Hospital for Tropical Diseases, Ho Chi Minh, Vietnam
| | - Hugo C. Turner
- Oxford University Clinical Research Unit, Ho Chi Minh, Vietnam
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
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3
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HCV genotypes and their determinative role in hepatitis C treatment. Virusdisease 2020; 31:235-240. [PMID: 32904762 DOI: 10.1007/s13337-020-00592-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 04/24/2020] [Indexed: 02/05/2023] Open
Abstract
Nowadays, exposure to infectious diseases caused by pathogenic viruses has become one of the major human concerns in health fields. In the meantime, hepatitis viruses are associated with health problems, especially in liver tissue. So far, several types of these viruses have been known including: HAV, HBV, HCV, HDV, HEV, and HGV. Nevertheless, it seems that hepatitis C is the major viral infection among all of the hepatitis infections. The cirrhosis and hepatocellular carcinoma are known as the most important pathological complications of this virus, from which seven genotypes have been identified. However, among these genotypes, the incidence rate of genotypes 1 and 3 is more than others. In this review, we have investigated the relationship between all HCV genotypes and therapeutic responses against them. Regarding heterogeneity between hepatitis C genotypes, it is not possible to access an effective vaccine against this virus, and treatment is the only applicable strategy. Response to treatment is different among genotypes, and it has resulted that each genotype has a specific therapeutic regimen of itself. Therefore, it seems that determination of hepatitis C genotype, as a key tool, is essential in controlling therapeutic regimen, improving local control programs and eventually producing an effective vaccine.
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4
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Nguyen HA, Cooke GS, Day JN, Flower B, Phuong LT, Hung TM, Dung NT, Khoa DB, Hung LM, Kestelyn E, Thwaites GE, Chau NVV, Turner HC. The direct-medical costs associated with interferon-based treatment for Hepatitis C in Vietnam. Wellcome Open Res 2019; 4:129. [PMID: 32734002 PMCID: PMC7372532 DOI: 10.12688/wellcomeopenres.15408.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/16/2019] [Indexed: 02/02/2023] Open
Abstract
Background: Injectable interferon-based therapies have been used to treat hepatitis C virus (HCV) infection since 1991. International guidelines have now moved away from interferon-based therapy towards direct-acting antiviral (DAA) tablet regimens, because of their superior efficacy, excellent side-effect profiles, and ease of administration. Initially DAA drugs were prohibitively expensive for most healthcare systems. Access is now improving through the procurement of low-cost, generic DAAs acquired through voluntary licenses. However, HCV treatment costs vary widely, and many countries are struggling with DAA treatment scale-up. This is not helped by the limited cost data and economic evaluations from low- and middle-income countries to support HCV policy decisions. We conducted a detailed analysis of the costs of treating chronic HCV infection with interferon-based therapy in Vietnam. Understanding these costs is important for performing necessary economic evaluations of novel treatment strategies. Methods: We conducted an analysis of the direct medical costs of treating HCV infection with interferon alpha (IFN) and pegylated-interferon alpha (Peg-IFN), in combination with ribavirin, from the health sector perspective at the Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam, in 2017. Results: The total cost of the IFN treatment regimen was estimated to range between US$1,120 and US$1,962. The total cost of the Peg-IFN treatment regimen was between US$2,156 and US$5,887. Drug expenses were the biggest contributor to the total treatment cost (54-89%) and were much higher for the Peg-IFN regimen. Conclusions: We found that treating HCV with IFN or Peg-IFN resulted in significant direct medical costs. Of concern, we found that all patients incurred substantial out-of-pocket costs, including those receiving the maximum level of support from the national health insurance programme. This cost data highlights the potential savings and importance of increased access to generic DAAs in low- and middle-income countries and will be useful within future economic evaluations.
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Affiliation(s)
| | - Graham S. Cooke
- Division of Infectious Diseases, Imperial College London, London, UK
| | - Jeremy N. Day
- Oxford University Clinical Research Unit, Ho Chi Minh, Vietnam
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Barnaby Flower
- Oxford University Clinical Research Unit, Ho Chi Minh, Vietnam
| | | | - Trinh Manh Hung
- Oxford University Clinical Research Unit, Ho Chi Minh, Vietnam
| | | | - Dao Bach Khoa
- Hospital for Tropical Diseases, Ho Chi Minh, Vietnam
| | - Le Manh Hung
- Hospital for Tropical Diseases, Ho Chi Minh, Vietnam
| | - Evelyne Kestelyn
- Oxford University Clinical Research Unit, Ho Chi Minh, Vietnam
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Guy E. Thwaites
- Oxford University Clinical Research Unit, Ho Chi Minh, Vietnam
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | | | - SEARCH Investigators
- Oxford University Clinical Research Unit, Ho Chi Minh, Vietnam
- Division of Infectious Diseases, Imperial College London, London, UK
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Hospital for Tropical Diseases, Ho Chi Minh, Vietnam
| | - Hugo C. Turner
- Oxford University Clinical Research Unit, Ho Chi Minh, Vietnam
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
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Sanarico N, D’Amato S, Bruni R, Rovetto C, Salvi E, Di Zeo P, Chionne P, Madonna E, Pisani G, Costantino A, Equestre M, Tosti ME, Cenci A, Maggiorella MT, Sernicola L, Pontali E, Pansera A, Quattrocchi R, Carbonara S, Signorile F, Surace LA, Federzoni G, Garlassi E, Starnini G, Monarca R, Babudieri S, Rapicetta M, Pompa MG, Caraglia A, Ensoli B, Ciccaglione AR, Buttò S. Correlates of infection and molecular characterization of blood-borne HIV, HCV, and HBV infections in HIV-1 infected inmates in Italy: An observational cross-sectional study. Medicine (Baltimore) 2016; 95:e5257. [PMID: 27858889 PMCID: PMC5591137 DOI: 10.1097/md.0000000000005257] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Coinfection of blood-borne hepatitis B and hepatitis C viruses (HBV and HCV, respectively) in human immunodeficiency virus type 1 (HIV-1)-positive individuals frequently occurs in inmate population and peculiar viral strains and patterns of virological markers may be observed.Plasma from 69 HIV-1-positive inmates was obtained from 7 clinical centers connected with correctional centers in different towns in Italy. HIV, HBV, and HCV markers were tested by commercial assays. Virus genotyping was carried out by sequencing the protease and reverse transcriptase-encoding region (PR-RT region) for HIV and a region encompassing the NS5B gene for HCV and subsequent phylogenetic analysis.Twelve over 14 HIV-subtyped inmates were infected with HIV-1 subtype B strains. The 2 non-B strains belonged to subtype G and CRF02_AG, in an Italian and a Gambian patient, respectively. Variants carrying the K103N and Y181C resistance mutations to non-nucleoside reverse transcriptase inhibitors (NNRTIs) were found in 2 out of 9 patients naive for combined antiretroviral therapy (cART) (22.2%). Most HIV-positive patients (92.8%) showed evidence of past or present HBV and/or HCV infection. Prevalence of HBV and HCV was 81.2% for both viruses, whereas prevalence of HBV/HCV coinfection was 69.6%. A significantly higher presence of HCV infection was found in Italians [odds ratio (OR) 11.0; interval 1.7-80.9] and in drug users (OR 27.8; interval 4.9-186.0). HCV subtypes were determined in 42 HCV or HBV/HCV-coinfected individuals. HCV subtypes 1a, 3a, 4d, and 1b were found in 42.9%, 40.5%, 14.3%, and 2.4% of inmates, respectively. Low titers of HBV DNA in HBV DNA positive subjects precluded HBV subtyping.The high prevalence of HBV and HCV coinfections in HIV-infected inmates, as well as the heterogeneity of HIV and HCV subtypes suggest the need to adopt systematic controls in prisons to monitor both the burden and the genetic forms of blood-borne viral infections, in order to apply targeted therapeutic interventions.
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Affiliation(s)
| | | | - Roberto Bruni
- Department of Infectious Diseases, Istituto Superiore di Sanità, Rome
| | | | - Emanuela Salvi
- National AIDS Center, Istituto Superiore di Sanità, Rome
| | | | - Paola Chionne
- Department of Infectious Diseases, Istituto Superiore di Sanità, Rome
| | | | - Giulio Pisani
- Department of Infectious Diseases, Istituto Superiore di Sanità, Rome
| | - Angela Costantino
- National AIDS Center, Istituto Superiore di Sanità, Rome
- Italian Ministry of Health, Rome
- Department of Infectious Diseases, Istituto Superiore di Sanità, Rome
| | - Michele Equestre
- Department of Infectious Diseases, Istituto Superiore di Sanità, Rome
| | - Maria E. Tosti
- Department of Infectious Diseases, Istituto Superiore di Sanità, Rome
| | | | | | | | - Emanuele Pontali
- ASL 3 Genovese and Department of Infectious Diseases, Galliera Hospital, Genova
| | | | | | | | | | - Lorenzo Antonio Surace
- Centro Medicina del Viaggiatore e delle Migrazioni, Presidio Ospedaliero di Lamezia Terme, Giovanni Paolo II Hospital, Lamezia Terme
| | | | | | | | | | | | - Maria Rapicetta
- Department of Infectious Diseases, Istituto Superiore di Sanità, Rome
| | | | | | - Barbara Ensoli
- National AIDS Center, Istituto Superiore di Sanità, Rome
| | | | - Stefano Buttò
- National AIDS Center, Istituto Superiore di Sanità, Rome
- Correspondence: Stefano Buttò, National AIDS Center, Istituto Superiore di Sanità, V.le Regina Elena 299, 00161 Rome, Italy (e-mail: )
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6
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Park J, Moore JC, Xu F. Asymmetric Synthesis of iso-Boc (S)-2-Amino-8-nonenoic Acid in One Through-Process. Org Process Res Dev 2015. [DOI: 10.1021/acs.oprd.5b00392] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jeonghan Park
- Department of Process Chemistry, Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Jeffrey C. Moore
- Department of Process Chemistry, Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Feng Xu
- Department of Process Chemistry, Merck Research Laboratories, Rahway, New Jersey 07065, United States
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7
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Duan XQ, Li SL, Li YJ, Liu B, Zeng PB, Yang CH, Chen LM. The Role of MicroRNA in Hepatitis C Virus Replication. J Clin Transl Hepatol 2013; 1:125-30. [PMID: 26355873 PMCID: PMC4521283 DOI: 10.14218/jcth.2013.00012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2013] [Revised: 10/15/2013] [Accepted: 10/16/2013] [Indexed: 12/04/2022] Open
Abstract
Hepatitis C virus (HCV) infection is a major global health problem. There is no effective vaccine and the current treatment regimen with pegylated interferon α and ribavirin is associated with significant adverse events. Therefore, there is an urgent need to identify new antiviral targets for HCV therapy. In recent years, a growing number of microRNAs (miRNAs) have been reported to be able to regulate HCV replication and infection by interacting with the HCV genome directly or by regulating host innate immunity to build a nonspecific antiviral state within cells. In this review, we discuss HCV virology and standard of care followed by miRNA in general, and then give a brief overview of miRNAs involved in HCV infection and discuss their potential application as a therapeutic option for the treatment of HCV infection.
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Affiliation(s)
- Xiao-Qiong Duan
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, Sichuan, China
| | - Shi-Lin Li
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, Sichuan, China
| | - Yu-Jia Li
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, Sichuan, China
| | - Bing Liu
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, Sichuan, China
| | - Pei-Bing Zeng
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, Sichuan, China
| | - Chun-Hui Yang
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, Sichuan, China
| | - Li-Min Chen
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, Sichuan, China ; Toronto General Research Institute, University of Toronto, Toronto, ON, Canada
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8
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Wang Y. Scotomas in molecular virology and epidemiology of hepatitis C virus. World J Gastroenterol 2013; 19:7910-7921. [PMID: 24307785 PMCID: PMC3848139 DOI: 10.3748/wjg.v19.i44.7910] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 10/22/2013] [Accepted: 11/05/2013] [Indexed: 02/06/2023] Open
Abstract
In the 1970s, scientists learned of a new pathogen causing non-A, non-B hepatitis. Classical approaches were used to isolate and characterize this new pathogen, but it could be transmitted experimentally only to chimpanzees and progress was slow until the pathogen was identified as hepatitis C virus (HCV) in 1989. Since then, research and treatment of HCV have expanded with the development of modern biological medicine: HCV genome organization and polyprotein processing were delineated in 1993; the first three-dimensional structure of HCV nonstructural protein (NS3 serine protease) was revealed in 1996; an infectious clone of HCV complementary DNA was first constructed in 1997; interferon and ribavirin combination therapy was established in 1998 and the therapeutic strategy gradually optimized; the HCV replicon system was produced in 1999; functional HCV pseudotyped viral particles were described in 2003; and recombinant infectious HCV in tissue culture was produced successfully in 2005. Recently, tremendous advances in HCV receptor discovery, understanding the HCV lifecycle, decryption of the HCV genome and proteins, as well as new anti-HCV compounds have been reported. Because HCV is difficult to isolate and culture, researchers have had to avail themselves to the best of modern biomedical technology; some of the major achievements in HCV research have not only advanced the understanding of HCV but also promoted knowledge of virology and cellular physiology. In this review, we summarize the advancements and remaining scotomas in the molecular virology and epidemiology of HCV.
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