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Neoh CF, Chen SCA, Lanternier F, Tio SY, Halliday CL, Kidd SE, Kong DCM, Meyer W, Hoenigl M, Slavin MA. Scedosporiosis and lomentosporiosis: modern perspectives on these difficult-to-treat rare mold infections. Clin Microbiol Rev 2024; 37:e0000423. [PMID: 38551323 DOI: 10.1128/cmr.00004-23] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2024] Open
Abstract
SUMMARYAlthough Scedosporium species and Lomentospora prolificans are uncommon causes of invasive fungal diseases (IFDs), these infections are associated with high mortality and are costly to treat with a limited armamentarium of antifungal drugs. In light of recent advances, including in the area of new antifungals, the present review provides a timely and updated overview of these IFDs, with a focus on the taxonomy, clinical epidemiology, pathogenesis and host immune response, disease manifestations, diagnosis, antifungal susceptibility, and treatment. An expansion of hosts at risk for these difficult-to-treat infections has emerged over the last two decades given the increased use of, and broader population treated with, immunomodulatory and targeted molecular agents as well as wider adoption of antifungal prophylaxis. Clinical presentations differ not only between genera but also across the different Scedosporium species. L. prolificans is intrinsically resistant to most currently available antifungal agents, and the prognosis of immunocompromised patients with lomentosporiosis is poor. Development of, and improved access to, diagnostic modalities for early detection of these rare mold infections is paramount for timely targeted antifungal therapy and surgery if indicated. New antifungal agents (e.g., olorofim, fosmanogepix) with novel mechanisms of action and less cross-resistance to existing classes, availability of formulations for oral administration, and fewer drug-drug interactions are now in late-stage clinical trials, and soon, could extend options to treat scedosporiosis/lomentosporiosis. Much work remains to increase our understanding of these infections, especially in the pediatric setting. Knowledge gaps for future research are highlighted in the review.
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Affiliation(s)
- Chin Fen Neoh
- National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Melbourne, Australia
- Department of Infectious Diseases, Peter MacCallum Cancer Centre, Melbourne, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Australia
| | - Sharon C-A Chen
- Centre for Infectious Diseases and Microbiology Laboratory Services, New South Wales Health Pathology, Westmead Hospital, Sydney, Australia
- The University of Sydney, Sydney, Australia
- Department of Infectious Diseases, Westmead Hospital, Sydney, Australia
| | - Fanny Lanternier
- Service de Maladies Infectieuses et Tropicales, Hôpital universitaire Necker-Enfants malades, Paris, France
- National Reference Center for Invasive Mycoses and Antifungals, Translational Mycology research group, Mycology Department, Institut Pasteur, Université Paris Cité, Paris, France
| | - Shio Yen Tio
- National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Melbourne, Australia
- Department of Infectious Diseases, Peter MacCallum Cancer Centre, Melbourne, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Australia
| | - Catriona L Halliday
- Centre for Infectious Diseases and Microbiology Laboratory Services, New South Wales Health Pathology, Westmead Hospital, Sydney, Australia
| | - Sarah E Kidd
- National Mycology Reference Centre, SA Pathology, Adelaide, Australia
- School of Biological Sciences, Faculty of Sciences, University of Adelaide, Adelaide, Australia
| | - David C M Kong
- National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Melbourne, Australia
- The National Centre for Antimicrobial Stewardship, The Peter Doherty Institute for Infections and Immunity, Melbourne, Australia
- Centre for Medicine Use and Safety, Monash Institute of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Monash University, Melbourne, Australia
- School of Medicine, Deakin University, Waurn Ponds, Geelong, Australia
| | - Wieland Meyer
- The University of Sydney, Sydney, Australia
- Westerdijk Fungal Biodiversity Institute, Utrecht, the Netherlands
| | - Martin Hoenigl
- Division of Infectious Diseases, Department of Internal Medicine, Medical University of Graz, Graz, Austria
- Translational Medical Mycology Research Group, ECMM Excellence Center for Clinical Mycology, Medical University of Graz, Graz, Austria
| | - Monica A Slavin
- National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Melbourne, Australia
- Department of Infectious Diseases, Peter MacCallum Cancer Centre, Melbourne, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Australia
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Davies GE, Thornton CR. A Lateral-Flow Device for the Rapid Detection of Scedosporium Species. Diagnostics (Basel) 2024; 14:847. [PMID: 38667492 PMCID: PMC11048963 DOI: 10.3390/diagnostics14080847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 04/15/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
Scedosporium species are human pathogenic fungi, responsible for chronic, localised, and life-threatening disseminated infections in both immunocompetent and immunocompromised individuals. The diagnosis of Scedosporium infections currently relies on non-specific CT, lengthy and insensitive culture from invasive biopsy, and the time-consuming histopathology of tissue samples. At present, there are no rapid antigen tests that detect Scedosporium-specific biomarkers. Here, we report the development of a rapid (30 min) and sensitive (pmol/L sensitivity) lateral-flow device (LFD) test, incorporating a Scedosporium-specific IgG1 monoclonal antibody (mAb), HG12, which binds to extracellular polysaccharide (EPS) antigens between ~15 kDa and 250 kDa secreted during the hyphal growth of the pathogens. The test is compatible with human serum and allows for the detection of the Scedosporium species most frequently reported as agents of human disease (Scedosporium apiospermum, Scedosporium aurantiacum, and Scedosporium boydii), with limits of detection (LODs) of the EPS biomarkers in human serum of ~0.81 ng/mL (S. apiospermum), ~0.94 ng/mL (S. aurantiacum), and ~1.95 ng/mL (S. boydii). The Scedosporium-specific LFD (ScedLFD) test therefore provides a potential novel opportunity for the detection of infections caused by different Scedosporium species.
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Affiliation(s)
- Genna E. Davies
- ISCA Diagnostics Ltd., B12A, Hatherly Laboratories, Prince of Wales Road, Exeter EX4 4PS, UK;
| | - Christopher R. Thornton
- ISCA Diagnostics Ltd., B12A, Hatherly Laboratories, Prince of Wales Road, Exeter EX4 4PS, UK;
- Biosciences, Faculty of Health and Life Sciences, Prince of Wales Road, Exeter EX4 4PS, UK
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Yan P, Chen J, Wang H, Jia Q, Xie J, Mo G. A systemic infection involved in lung, brain and spine caused by Scedosporium apiospermum species complex after near-drowning: a case report and literature review. BMC Infect Dis 2024; 24:342. [PMID: 38515075 PMCID: PMC10956195 DOI: 10.1186/s12879-023-08279-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 04/25/2023] [Indexed: 03/23/2024] Open
Abstract
Scedosporium apiospermum species complex are widely distributed fungi that can be found in a variety of polluted environments, including soil, sewage, and decaying vegetation. Those opportunistic pathogens with strong potential of invasion commonly affect immunosuppressed populations However, few cases of scedosporiosis are reported in immunocompetent individuals, who might be misdiagnosed, leading to a high mortality rate. Here, we reported an immunocompetent case of systemtic infection involved in lung, brain and spine, caused by S. apiospermum species complex (S. apiospermum and S. boydii). The patient was an elderly male with persistent fever and systemtic infection after near-drowning. In the two tertiary hospitals he visited, definite diagnosis was extremely difficult. After being admitted to our hospital, he was misdiagnosed as tuberculosis infection, before diagnosis of S. apiospermum species complex infection by the metagenomic next-generation sequencing. His symptoms were alleviated after voriconazole treatment. In the present case, the details associated with its course were reported and published studies on Scedosporium spp. infection were also reviewed, for a better understanding of this disease and reducing the misdiagnosis rate.
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Affiliation(s)
- Peng Yan
- College of Pulmonary and Critical Care Medicine, Chinese People's Liberation Army General Hospital, No. 17, Heishanhu Road, Haidian District, Beijing, 100091, China
- China Aerospace Science & Industry Corporation 731 Hospital, Beijing, China
| | - Junfeng Chen
- College of Pulmonary and Critical Care Medicine, Chinese People's Liberation Army General Hospital, No. 17, Heishanhu Road, Haidian District, Beijing, 100091, China
- The Fifth People's Hospital of Zunyi City, Zunyi City, Guizhou Province, China
| | - Haodi Wang
- Vision Medicals for Infection Diseases, Guangzhou, Guangdong, China
| | - Qi Jia
- Vision Medicals for Infection Diseases, Guangzhou, Guangdong, China
| | - Jungang Xie
- Pulmonary and Critical Care Medicine, Tongji Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave., Wuhan, Hubei, China.
| | - Guoxin Mo
- College of Pulmonary and Critical Care Medicine, Chinese People's Liberation Army General Hospital, No. 17, Heishanhu Road, Haidian District, Beijing, 100091, China.
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Han J, Liang L, Li Q, Deng R, Liu C, Wu X, Zhang Y, Zhang R, Dai H. Diagnosis of pulmonary Scedosporium apiospermum infection from bronchoalveolar lavage fluid by metagenomic next-generation sequencing in an immunocompetent female patient with normal lung structure: a case report and literature review. BMC Infect Dis 2024; 24:308. [PMID: 38481149 PMCID: PMC10935950 DOI: 10.1186/s12879-024-09140-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 02/14/2024] [Indexed: 03/17/2024] Open
Abstract
BACKGROUND Scedosporium apiospermum (S. apiospermum) belongs to the asexual form of Pseudallescheria boydii and is widely distributed in various environments. S. apiospermum is the most common cause of pulmonary infection; however, invasive diseases are usually limited to patients with immunodeficiency. CASE PRESENTATION A 54-year-old Chinese non-smoker female patient with normal lung structure and function was diagnosed with pulmonary S. apiospermum infection by metagenomic next-generation sequencing (mNGS) of bronchoalveolar lavage fluid (BALF). The patient was admitted to the hospital after experiencing intermittent right chest pain for 8 months. Chest computed tomography revealed a thick-walled cavity in the upper lobe of the right lung with mild soft tissue enhancement. S. apiospermum was detected by the mNGS of BALF, and DNA sequencing reads were 426. Following treatment with voriconazole (300 mg q12h d1; 200 mg q12h d2-d20), there was no improvement in chest imaging, and a thoracoscopic right upper lobectomy was performed. Postoperative pathological results observed silver staining and PAS-positive oval spores in the alveolar septum, bronchiolar wall, and alveolar cavity, and fungal infection was considered. The patient's symptoms improved; the patient continued voriconazole for 2 months after surgery. No signs of radiological progression or recurrence were observed at the 10-month postoperative follow-up. CONCLUSION This case report indicates that S. apiospermum infection can occur in immunocompetent individuals and that the mNGS of BALF can assist in its diagnosis and treatment. Additionally, the combined therapy of antifungal drugs and surgery exhibits a potent effect on the disease.
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Affiliation(s)
- Jingru Han
- Department of Oncology, The First Affiliated Hospital of Chongqing Medical University, No.1 Youyi Road, Yuan Jiagang, Yuzhong District, Chongqing, 400010, China
| | - Lifang Liang
- The First College of Clinical Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Qingshu Li
- Department of Pathology, School of Basic Medicine, Chongqing Medical University, No.1 Medical College Road, Yuzhong District, Chongqing, 400016, China
| | - Ruihang Deng
- The First College of Clinical Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Chenyang Liu
- The Second College of Clinical Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Xuekai Wu
- The First College of Clinical Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Yuxin Zhang
- The First College of Clinical Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Ruowen Zhang
- The First College of Clinical Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Haiyun Dai
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, No.1 Youyi Road, Yuan Jiagang, Yuzhong District, Chongqing, 400010, China.
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Liang HY, Han CH, Xu WJ, Sun J, Wang Q. Pulmonary scedosporiosis in an intractable immunocompetent host: A case report and literature review. THE CLINICAL RESPIRATORY JOURNAL 2024; 18:e13739. [PMID: 38433370 PMCID: PMC10909920 DOI: 10.1111/crj.13739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 01/26/2024] [Accepted: 02/11/2024] [Indexed: 03/05/2024]
Abstract
Pulmonary scedosporiosis is a rare pulmonary infection that often presents with nonspecific symptoms and radiological findings. In this report, we present a case of localized pulmonary scedosporiosis in an immunocompetent patient and analyze a total of 25 immunocompetent patients with pulmonary scedosporiosis. Through this case and the literature, we highlight the importance of considering pulmonary scedosporiosis in patients with nonspecific clinical symptoms and radiological findings resembling aspergilloma. This case and the literature further emphasize the significance of surgical intervention. Regardless of the use of antifungal drugs, surgery should be conducted as soon as possible.
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Affiliation(s)
- Hong Yu Liang
- Department of Respiratory and Critical Care MedicineThe Affiliated Hospital of Qingdao UniversityQingdaoChina
| | - Chun Hua Han
- Department of Bacteriology RoomThe Affiliated Hospital of Qingdao UniversityQingdaoChina
| | - Wen Juan Xu
- Department of Respiratory and Critical Care MedicineThe Affiliated Hospital of Qingdao UniversityQingdaoChina
| | - Jian Sun
- Department of Respiratory and Critical Care MedicineThe Affiliated Hospital of Qingdao UniversityQingdaoChina
| | - Qiang Wang
- Department of Respiratory and Critical Care MedicineThe Affiliated Hospital of Qingdao UniversityQingdaoChina
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Luna-Rodríguez CE, González GM, Flores-Maldonado OE, Treviño-Rangel R, Rosas-Taraco AG, Becerril-García MA. Early production of proinflammatory cytokines in response to Scedosporium apiospermum during murine pulmonary infection. Microb Pathog 2022; 170:105718. [PMID: 35961485 DOI: 10.1016/j.micpath.2022.105718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 08/03/2022] [Accepted: 08/04/2022] [Indexed: 11/29/2022]
Abstract
Scedosporium apiospermum is an opportunistic pathogen that can cause pulmonary infections in both immunosuppressive and immunocompetent patients. Cytokines are molecules that mediate the immune response to promote or eliminate fungal infections. In this work, we evaluated the cytokines profile in the lung and serum of mice infected with Scedosporium apiospermum. We found early production of IL-6, IL-1β and TNF-α cytokines in the lung of infected mice during the first 5 days of infection. We suggest that release of pro-inflammatory cytokines could play a role in the control of fungal invasion.
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Affiliation(s)
- Carolina E Luna-Rodríguez
- Departamento de Microbiología, Universidad Autónoma de Nuevo León, Facultad de Medicina y Hospital Universitario "Dr. José Eleuterio González", Av. Francisco I. Madero, Mitras Centro, 64460, Monterrey, Mexico
| | - Gloria M González
- Departamento de Microbiología, Universidad Autónoma de Nuevo León, Facultad de Medicina y Hospital Universitario "Dr. José Eleuterio González", Av. Francisco I. Madero, Mitras Centro, 64460, Monterrey, Mexico
| | - Orlando E Flores-Maldonado
- Departamento de Microbiología, Universidad Autónoma de Nuevo León, Facultad de Medicina y Hospital Universitario "Dr. José Eleuterio González", Av. Francisco I. Madero, Mitras Centro, 64460, Monterrey, Mexico
| | - Rogelio Treviño-Rangel
- Departamento de Microbiología, Universidad Autónoma de Nuevo León, Facultad de Medicina y Hospital Universitario "Dr. José Eleuterio González", Av. Francisco I. Madero, Mitras Centro, 64460, Monterrey, Mexico
| | - Adrián G Rosas-Taraco
- Departamento de Inmunología, Universidad Autónoma de Nuevo León, Facultad de Medicina y Hospital Universitario "Dr. José Eleuterio González", Av. Francisco I. Madero, Mitras Centro, 64460, Monterrey, Mexico
| | - Miguel A Becerril-García
- Departamento de Microbiología, Universidad Autónoma de Nuevo León, Facultad de Medicina y Hospital Universitario "Dr. José Eleuterio González", Av. Francisco I. Madero, Mitras Centro, 64460, Monterrey, Mexico.
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Shi XW, Li ST, Lou JP, Xu B, Wang J, Wang X, Liu H, Li SK, Zhen P, Zhang T. Scedosporium apiospermum infection of the lumbar vertebrae: A case report. World J Clin Cases 2022; 10:3251-3260. [PMID: 35647125 PMCID: PMC9082694 DOI: 10.12998/wjcc.v10.i10.3251] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 12/31/2021] [Accepted: 02/23/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Scedosporium apiospermum (S. apiospermum) is a clinically rare and aggressive fungus mainly found in contaminated water, wetlands, decaying plants, stagnant water, and potted plants in hospitals. The lung, bone, joint, eye, brain, skin, and other sites are easily infected, and there is a marked risk of misdiagnosis. There have been few case reports of infection by S. apiospermum of the lumbar vertebrae; most reports have focused on infection of the lung.
CASE SUMMARY An otherwise healthy 60-year-old man presented with a 4-mo history of lumbosacral pain, stooping, and limited walking. The symptoms were significantly aggravated 10 d prior to hospitalization, and radiating pain in the back of his left lower leg developed, which was so severe that he could not walk. Movement of the lumbar spine was significantly limited, anterior flexion was about 30°; backward extension, right and left lateral curvature, and rotational mobility were about 10°; tenderness of the spinous processes of the lumbar 3-5 vertebrae was evident, and the muscle strength of both lower limbs was grade IV. Imaging suggested bony destruction of the lumbar 3, 4, and 5 vertebrae and sacral 1 vertebra; in addition, the corresponding intervertebral spaces were narrowed and the lumbar 5 vertebra was posteriorly displaced and unstable. Lumbar vertebral infection was also noted, and the possibility of lumbar tuberculosis was considered. We first performed surgical intervention on the lesioned lumbar vertebrae, cleared the infected lesion, and performed stable fixation of the lesioned vertebral body using a lumbar internal fixation device, which restored the stability of the lumbar vertebrae. Cytological and pathological examination of the lesioned tissue removed during surgery confirmed S. apiospermum infection of the lumbar vertebrae; on this basis, the patient was administered voriconazole. At the 6-mo follow-up, efficacy was significant, no drug-related side effects were observed, and imaging examination showed no evidence of recurrence.
CONCLUSION S. apiospermum infection can occur in immunocompetent individuals with no history of near drowning. Voriconazole is effective for the treatment of S. apiospermum infection of the lumbar vertebrae for which it is suitable as the first-line therapy.
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Affiliation(s)
- Xue-Wen Shi
- Orthopaedic Centers, The 940th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army, Lanzhou 730050, Gansu Province, China
- Orthopaedic Centers, The Clinical Medical College of Ningxia Medical University, Yinchuan 750000, Ningxia Hui Autonomous Region, China
| | - Sheng-Tang Li
- Orthopaedic Centers, The 940th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army, Lanzhou 730050, Gansu Province, China
- Orthopaedic Centers, The Second Clinical Medical College of Lanzhou University, Lanzhou 730000, Gansu Province, China
| | - Jin-Peng Lou
- Orthopaedic Centers, The 940th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army, Lanzhou 730050, Gansu Province, China
- Orthopaedic Centers, The Clinical Medical College of Ningxia Medical University, Yinchuan 750000, Ningxia Hui Autonomous Region, China
| | - Bo Xu
- Orthopaedic Centers, The 940th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army, Lanzhou 730050, Gansu Province, China
- Orthopaedic Centers, The Second Clinical Medical College of Lanzhou University, Lanzhou 730000, Gansu Province, China
| | - Jian Wang
- Orthopaedic Centers, The 940th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army, Lanzhou 730050, Gansu Province, China
- Orthopaedic Centers, The Clinical Medical College of Gansu University of Traditional Chinese Medicine, Lanzhou 730000, Gansu Province, China
| | - Xin Wang
- Orthopaedic Centers, The 940th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army, Lanzhou 730050, Gansu Province, China
- Orthopaedic Centers, The Clinical Medical College of Ningxia Medical University, Yinchuan 750000, Ningxia Hui Autonomous Region, China
| | - Hua Liu
- Orthopaedic Centers, The 940th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army, Lanzhou 730050, Gansu Province, China
| | - Song-Kai Li
- Orthopaedic Centers, The 940th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army, Lanzhou 730050, Gansu Province, China
| | - Ping Zhen
- Orthopaedic Centers, The 940th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army, Lanzhou 730050, Gansu Province, China
| | - Tao Zhang
- Orthopaedic Centers, The 940th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army, Lanzhou 730050, Gansu Province, China
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