1
|
Liu R, Liu G, Lu F. VKH-like uveitis during donafenib therapy for hepatocellular carcinoma: a case report and review of the literature. Front Pharmacol 2024; 15:1401017. [PMID: 39092233 PMCID: PMC11291377 DOI: 10.3389/fphar.2024.1401017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 06/25/2024] [Indexed: 08/04/2024] Open
Abstract
Background The incidence of uveitis has risen with the use of targeted therapies, particularly prevalent in the administration of immune checkpoint inhibitors and MAP-kinase pathway inhibitors. We report the first case of VKH-like uveitis linked to Donafenib employed for the primary hepatocellular carcinoma, highlighting the necessity of ophthalmological follow-up in patients undergoing treatment with Donafenib. Case presentation A 55-year-old man developed VKH-like symptoms, including sporadic white patches, tinnitus, headache, and mild bilateral vision reduction, after 18 months of treatment with Donafenib and Sintilimab for hepatocellular carcinoma. Based on ophthalmological examinations that fundus fluorescein angiography images demonstrating multiple focal areas of pinpoint hyperfluorescence, along with pooling indicative of neurosensory detachment and disc leakage in both eyes, choroid thickening in swept-source optical coherence tomography, and "sunset-glow" fundus appearance, a tentative diagnosis of VKH-like uveitis was made. Initially, his best-corrected visual acuity (BCVA) was 20/200 in the right eye and 20/80 in the left eye. Upon discontinuing Donafenib and starting a 3-month course of oral glucocorticoids, his BCVA improved to 20/30 in the right eye and 20/40 in the left eye. Conclusion Targeted drugs have been commonly used for cancer treatment in recent years, but challenges of ocular side effects emerged gradually. To optimize patient outcomes, regular ophthalmological follow-ups are essential for those undergoing treatment with targeted therapies like Donafenib.
Collapse
Affiliation(s)
| | | | - Fang Lu
- Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu, China
| |
Collapse
|
2
|
O'Brien A, Boan P. Cidofovir-induced anterior uveitis in an allogeneic stem cell transplant recipient. Transpl Infect Dis 2022; 24:e13974. [PMID: 36306187 DOI: 10.1111/tid.13974] [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: 09/12/2022] [Accepted: 09/16/2022] [Indexed: 12/24/2022]
Abstract
Anterior uveitis is a reported complication of intravenous cidofovir, almost exclusively described in human immunodeficiency virus (HIV) infected patients treated for cytomegalovirus retinitis. In this study, we report the case of an allogeneic stem cell transplant recipient with significant visual impairment and hypotony following administration of high-dose intravenous cidofovir for hemorrhagic cystitis due to BK virus.
Collapse
Affiliation(s)
- Aine O'Brien
- Department of Infectious Diseases, Fiona Stanley Hospital, Murdoch, Western Australia
| | - Peter Boan
- Department of Infectious Diseases, Fiona Stanley Hospital, Murdoch, Western Australia
| |
Collapse
|
3
|
Xu C, Prager AJ, Alonso CD, Pawar AS. Insights From the Eye for Patients With Kidney Transplant. Transplant Proc 2022; 54:2182-2191. [PMID: 36096946 DOI: 10.1016/j.transproceed.2022.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Accepted: 07/12/2022] [Indexed: 11/29/2022]
Abstract
The eye and the kidney share structural and developmental similarities on a cellular and clinical level, and they are often affected by the same disease processes. Performing an eye exam to look for signs of conditions such as hypertension and diabetes can provide a helpful window into the health of the kidney. Patients with kidney transplants (KT) are a unique population that require close monitoring. These patients are maintained on a number of immunosuppressive medications and may face complications such as medication side effects, infections, and graft rejection. Patients with KT are at higher risk of both infectious and noninfectious eye conditions related to underlying systemic disease or use of immunosuppressive medications. Screening for eye conditions is important because preserving visual function is integral to quality of life, and also because the eye exam can help with early detection and treatment of systemic conditions. Here we describe some of the common eye findings and conditions in patients with KT. We recommend that patients with KT receive annual eye exams, and we hope that the information provided here can help nephrologists become more familiar with eye findings and identify situations where a referral to ophthalmology is warranted.
Collapse
Affiliation(s)
| | - Alisa J Prager
- Harvard Medical School, Boston, Massachusetts; Division of Ophthalmology, Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - Carolyn D Alonso
- Harvard Medical School, Boston, Massachusetts; Division of Infectious Disease, Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - Aditya S Pawar
- Harvard Medical School, Boston, Massachusetts; Division of Nephrology, Beth Israel Deaconess Medical Center, Boston, Massachusetts.
| |
Collapse
|
4
|
Myint TM, Chong CHY, Wyld M, Nankivell B, Kable K, Wong G. Polyoma BK Virus in Kidney Transplant Recipients: Screening, Monitoring, and Management. Transplantation 2022; 106:e76-e89. [PMID: 33908382 DOI: 10.1097/tp.0000000000003801] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Polyomavirus BK virus (BKPyV) infection is an important complication of kidney transplantation and allograft failure. The prevalence of viremia is 10%-15%, compared with BK-associated nephropathy (BKPyVAN) at 3%-5%. Given that there are no effective antiviral prophylaxis or treatment strategies for BKPyVAN, active screening to detect BKPyV viremia is recommended, particularly during the early posttransplant period. Immunosuppression reduction to allow viral clearance may avoid progression to severe and irreversible allograft damage. The frequency and duration of screening are highly variable between transplant centers because the evidence is reliant largely on observational data. While the primary treatment goals center on achieving viral clearance through immunosuppression reduction, prevention of subsequent acute rejection, premature graft loss, and return to dialysis remain as major challenges. Treatment strategies for BKPyV infection should be individualized to the recipient's underlying immunological risk and severity of the allograft infection. Efficacy data for adjuvant therapies including intravenous immunoglobulin and cidofovir are sparse. Future well-powered and high-quality randomized controlled trials are needed to inform evidence-based clinical practice for the management of BKPy infection.
Collapse
Affiliation(s)
- Thida Maung Myint
- Sydney School of Public Health, University of Sydney, Sydney, NSW, Australia
- Newcastle Transplant Unit, John Hunter Hospital, Newcastle, NSW, Australia
| | - Chanel H Y Chong
- Sydney School of Public Health, University of Sydney, Sydney, NSW, Australia
| | - Melanie Wyld
- Department of Renal Medicine, Centre for Transplant and Renal Research, Westmead Hospital, Westmead, NSW, Australia
| | - Brian Nankivell
- Department of Renal Medicine, Centre for Transplant and Renal Research, Westmead Hospital, Westmead, NSW, Australia
| | - Kathy Kable
- Department of Renal Medicine, Centre for Transplant and Renal Research, Westmead Hospital, Westmead, NSW, Australia
| | - Germaine Wong
- Sydney School of Public Health, University of Sydney, Sydney, NSW, Australia
- Department of Renal Medicine, Centre for Transplant and Renal Research, Westmead Hospital, Westmead, NSW, Australia
- Centre for Kidney Research, The Children's Hospital at Westmead, Westmead, NSW, Australia
| |
Collapse
|
5
|
Wu Z, Graf FE, Hirsch HH. Antivirals against human polyomaviruses: Leaving no stone unturned. Rev Med Virol 2021; 31:e2220. [PMID: 33729628 DOI: 10.1002/rmv.2220] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 12/20/2022]
Abstract
Human polyomaviruses (HPyVs) encompass more than 10 species infecting 30%-90% of the human population without significant illness. Proven HPyV diseases with documented histopathology affect primarily immunocompromised hosts with manifestations in brain, skin and renourinary tract such as polyomavirus-associated nephropathy (PyVAN), polyomavirus-associated haemorrhagic cystitis (PyVHC), polyomavirus-associated urothelial cancer (PyVUC), progressive multifocal leukoencephalopathy (PML), Merkel cell carcinoma (MCC), Trichodysplasia spinulosa (TS) and pruritic hyperproliferative keratinopathy. Although virus-specific immune control is the eventual goal of therapy and lasting cure, antiviral treatments are urgently needed in order to reduce or prevent HPyV diseases and thereby bridging the time needed to establish virus-specific immunity. However, the small dsDNA genome of only 5 kb of the non-enveloped HPyVs only encodes 5-7 viral proteins. Thus, HPyV replication relies heavily on host cell factors, thereby limiting both, number and type of specific virus-encoded antiviral targets. Lack of cost-effective high-throughput screening systems and relevant small animal models complicates the preclinical development. Current clinical studies are limited by small case numbers, poorly efficacious compounds and absence of proper randomized trial design. Here, we review preclinical and clinical studies that evaluated small molecules with presumed antiviral activity against HPyVs and provide an outlook regarding potential new antiviral strategies.
Collapse
Affiliation(s)
- Zongsong Wu
- Transplantation & Clinical Virology, Department Biomedicine, University of Basel, Basel, Switzerland
| | - Fabrice E Graf
- Transplantation & Clinical Virology, Department Biomedicine, University of Basel, Basel, Switzerland
| | - Hans H Hirsch
- Transplantation & Clinical Virology, Department Biomedicine, University of Basel, Basel, Switzerland.,Clinical Virology, Laboratory Medicine, University Hospital Basel, Basel, Switzerland.,Infectious Diseases & Hospital Epidemiology, University Hospital Basel, Basel, Switzerland
| |
Collapse
|
6
|
|
7
|
Affiliation(s)
- Sapna Desai
- Department of Ophthalmology & Visual Sciences, Medical College of Wisconsin Eye Institute, Milwaukee
| | - Thomas B Connor
- Department of Ophthalmology & Visual Sciences, Medical College of Wisconsin Eye Institute, Milwaukee
| | - Laura J Kopplin
- Department of Ophthalmology & Visual Sciences, Medical College of Wisconsin Eye Institute, Milwaukee
| |
Collapse
|
8
|
Jamboti JS. BK virus nephropathy in renal transplant recipients. Nephrology (Carlton) 2017; 21:647-54. [PMID: 26780694 DOI: 10.1111/nep.12728] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 12/31/2015] [Accepted: 01/14/2016] [Indexed: 01/16/2023]
Abstract
BK virus nephropathy (BKVN) occurs in up to 10% of renal transplant recipients and can result in graft loss. The reactivation of BK virus in renal transplant recipients is largely asymptomatic, and routine surveillance especially in the first 12-24 months after transplant is necessary for early recognition and intervention. Reduced immunosuppression and anti-viral treatment in the early stages may be effective in stopping BK virus replication. Urinary decoy cells, although highly specific, lack sensitivity to diagnose BKVN. Transplant biopsy remains the gold standard to diagnose BKVN, good surrogate markers for surveillance using quantitative urinary decoy cells, urinary SV40 T immunochemical staining or polyoma virus-Haufen bodies are offered by recent studies. Advanced BKVN results in severe tubulo-interstitial damage and graft failure. Retransplantation after BKVN is associated with good outcomes. Newer treatment modalities are emerging.
Collapse
Affiliation(s)
- Jagadish S Jamboti
- Department of Nephrology and Renal Transplantation, Fiona Stanley Hospital, Murdoch, Western Australia, Australia.,University of Western Australia, Crawley, Western Australia, Australia
| |
Collapse
|
9
|
Gonzalez S, Escobar-Serna DP, Suarez O, Benavides X, Escobar-Serna JF, Lozano E. BK Virus Nephropathy in Kidney Transplantation: An Approach Proposal and Update on Risk Factors, Diagnosis, and Treatment. Transplant Proc 2016; 47:1777-85. [PMID: 26293050 DOI: 10.1016/j.transproceed.2015.05.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2015] [Revised: 04/30/2015] [Accepted: 05/14/2015] [Indexed: 12/16/2022]
Abstract
BK virus belongs to Polyomaviridae family; it causes 95% of nephropathy cases related to polyomavirus, with the other 5% caused by JC virus. Nephropathy jeopardizes graft function, causing a premature failure of the graft in 1%-10% of patients with kidney transplants. Nowadays, antiviral effective treatment is unknown, which is why blood and urine screening of renal transplantation patients has become the most important recommendation to guide the decrease of immunosuppression, and the only proven method to decrease poor outcomes. Different interventions, such as cidofovir, leflunomide, fluoroquinolones, and intravenous immunoglobulin, have been attempted with no improvement at all. This review aims to summarize the most relevant features of BK virus, historical issues, transmission mechanisms, risk factors, and therapeutic interventions.
Collapse
Affiliation(s)
- S Gonzalez
- Organ and Tissues Transplant Group, Surgery Department, Medical School, National University of Colombia, Bogotá, Colombia.
| | - D P Escobar-Serna
- Organ and Tissues Transplant Group, Surgery Department, Medical School, National University of Colombia, Bogotá, Colombia
| | - O Suarez
- Organ and Tissues Transplant Group, Surgery Department, Medical School, National University of Colombia, Bogotá, Colombia
| | - X Benavides
- Organ and Tissues Transplant Group, Surgery Department, Medical School, National University of Colombia, Bogotá, Colombia
| | - J F Escobar-Serna
- Internal Medicine and Critical Care, Universidad de Antioquia, Medellín, Colombia
| | - E Lozano
- Organ and Tissues Transplant Group, Surgery Department, Medical School, National University of Colombia, Bogotá, Colombia; Hospital Universitario San Ignacio, Bogotá, Colombia
| |
Collapse
|
10
|
|
11
|
Balba GP, Javaid B, Timpone JG. BK Polyomavirus Infection in the Renal Transplant Recipient. Infect Dis Clin North Am 2013; 27:271-83. [DOI: 10.1016/j.idc.2013.02.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
12
|
London NJS, Garg SJ, Moorthy RS, Cunningham ET. Drug-induced uveitis. J Ophthalmic Inflamm Infect 2013; 3:43. [PMID: 23522744 PMCID: PMC3637087 DOI: 10.1186/1869-5760-3-43] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Accepted: 03/13/2013] [Indexed: 01/21/2023] Open
Abstract
A number of medications have been associated with uveitis. This review highlights both well-established and recently reported systemic, topical, intraocular, and vaccine-associated causes of drug-induced uveitis, and assigns a quantitative score to each medication based upon criteria originally described by Naranjo and associates.
Collapse
Affiliation(s)
- Nikolas JS London
- Retina Consultants San Diego, 9850 Genesee Avenue, Suite 700, La Jolla, CA, 92037, USA
| | - Sunir J Garg
- MidAtlantic Retina, The Retina Service of Wills Eye Institute, Thomas Jefferson University, 840 Walnut Street, Suite 1020, Philadelphia, PA, 19107, USA
| | - Ramana S Moorthy
- Associated Vitreoretinal and Uveitis Consultants, St. Vincent Hospital and Health Services, Indianapolis, IN, 46260, USA
- Associate Clinical Professor of Ophthalmology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Emmett T Cunningham
- Department of Ophthalmology, California Pacific Medical Center, San Francisco, CA, 94115, USA
- Department of Ophthalmology, Stanford University School of Medicine, Stanford, CA, 94305-5101, USA
| |
Collapse
|
13
|
Abstract
The human BK polyomavirus (BKV) is the major cause of polyomavirus-associated nephropathy (PyVAN) putting 1-15% of kidney transplant patients at risk of premature allograft failure, but is less common in other solid organ transplants. Because effective antiviral therapies are lacking, screening kidney transplant patients for BKV replication in urine and blood has become the key recommendation to guide the reduction of immunosuppression in patients with BKV viremia. This intervention allows for expanding BKV-specific cellular immune responses, curtailing of BKV replication in the graft, and clearance of BKV viremia in 70-90% patients. Postintervention rejection episodes occur in 8-12%, most of which are corticosteroid responsive. Late diagnosis is faced with irreversible functional decline, poor treatment response, and graft loss. Adjunct therapies such as cidofovir, leflunomide and intravenous immunoglobulins have been used, but the benefit is not documented in trials. Retransplantation after PyVAN is largely successful, but requires close monitoring for recurrent BKV viremia.
Collapse
Affiliation(s)
- H H Hirsch
- Infectious Diseases and Hospital Epidemiology, University Hospital Basel, Basel, Switzerland.
| | | | | |
Collapse
|
14
|
|
15
|
Affiliation(s)
- H H Hirsch
- Transplantation Virology, Department of Biomedicine, Institute for Medical Microbiology, University of Basel, Basel, Switzerland.
| | | | | |
Collapse
|
16
|
Petrov R, Elbahloul O, Gallichio MH, Stellrecht K, Conti DJ. Monthly screening for polyoma virus eliminates BK nephropathy and preserves renal function. Surg Infect (Larchmt) 2009; 10:85-90. [PMID: 19298172 DOI: 10.1089/sur.2008.052] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Polyoma BK virus nephropathy is a serious complication after renal transplantation and is associated with a high rate of allograft failure. Progressive infection with BK virus in immunocompromised renal transplant recipients occurs in detectable stages: Viruria, viremia, then nephropathy. METHODS In January, 2006, we initiated a plasma screening policy for all new transplant recipients, with monthly blood testing for BK virus by polymerase chain reaction (PCR). Between January 1, 2006, and February 28, 2007, 66 renal transplants were performed at our center. The 11 patients with a positive plasma BK PCR test underwent prompt reduction in baseline immunotherapy consisting of a 50% daily dose reduction (n = 6) or complete discontinuation of therapy with mycophenolate mofetil (n = 5). RESULTS After reduction or discontinuation of mycophenolate mofetil, 10 patients became negative for BK virus in the plasma within 6 months. Progression to BK nephropathy has not occurred, and renal transplant dysfunction secondary to acute cellular rejection developed in only 1 patient (9%). One year post-transplant, the mean serum creatinine values for these 11 patients remained stable at 1.5 mg/dL. CONCLUSION Monthly plasma screening for BK virus by PCR together with immunosuppressive regimen reduction prevents BK nephropathy. In addition, this intensive screening protocol is associated with a low rate of acute rejection and excellent preservation of renal function.
Collapse
Affiliation(s)
- Roman Petrov
- Department of Surgery, Albany Medical College, Albany, New York 12208, USA
| | | | | | | | | |
Collapse
|
17
|
Lamoth F, Pascual M, Erard V, Venetz JP, Nseir G, Meylan P. Low-dose Cidofovir for the Treatment of Polyomavirus-Associated Nephropathy: Two Case Reports and Review of the Literature. Antivir Ther 2008. [DOI: 10.1177/135965350801300806] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Polyomavirus-associated nephropathy (PVAN) is a serious complication and cause of graft loss in kidney transplant recipients. In the absence of specific antiviral drugs, early detection of the disease and reduction of immunosuppressive regimen is the cornerstone of therapy. Cidofovir, a nucleoside analogue, has been found to inhibit BK virus (BKV) replication in vitro and has been proposed as treatment of refractory PVAN at low doses; however, its efficacy has never been demonstrated in randomized controlled trials. Methods Cidofovir therapy (0.5 mg/kg at a 2-week interval for eight consecutive doses) was initiated in two patients with biopsy-proven PVAN and persistent BKV DNA viraemia (≥10,000 copies/ml despite sustained reduction of the immunosuppressive regimen). In addition to these two case reports, we performed a critical review of the literature on the use of cidofovir in PVAN. Results No significant decrease of BKV viral load in blood was observed during cidofovir therapy and in follow-up of the two patients treated with cidofovir. Our literature review identified 21 publications reporting the use of cidofovir for the treatment of PVAN. All were case reports or small series. The efficacy of cidofovir therapy could not be assessed in 17 of these publications because of lack of data or concomitant reduction of immunosuppressive regimen. The four remaining publications were case reports. Conclusions In vitro and clinical data to support the efficacy of cidofovir in the treatment of PVAN are currently lacking. More promising compounds should be identified for further clinical studies.
Collapse
Affiliation(s)
- Frédéric Lamoth
- Infectious Diseases Service, Department of Medicine, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
- Transplantation Centre, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
| | - Manuel Pascual
- Transplantation Centre, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
| | - Véronique Erard
- Infectious Diseases Service, Department of Medicine, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
| | - Jean-Pierre Venetz
- Transplantation Centre, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
| | - Ghaleb Nseir
- Transplantation Centre, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
| | - Pascal Meylan
- Infectious Diseases Service, Department of Medicine, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
- Institute of Microbiology, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
| |
Collapse
|
18
|
|
19
|
Hilton R, Tong CYW. Antiviral therapy for polyomavirus-associated nephropathy after renal transplantation. J Antimicrob Chemother 2008; 62:855-9. [DOI: 10.1093/jac/dkn305] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
|
20
|
Abstract
Nephropathy from BK virus (BKV) infection is an evolving challenge in kidney transplant recipients. It is the consequence of modern potent immunosuppression aimed at reducing acute rejection and improving allograft survival. Untreated BKV infections lead to kidney allograft dysfunction or loss. Decreased immunosuppression is the principle treatment but predisposes to acute and chronic rejection. Screening protocols for early detection and prevention of symptomatic BKV nephropathy have improved outcomes. Although no approved antiviral drug is available, leflunomide, cidofovir, quinolones, and intravenous Ig have been used. Retransplantation after BKV nephropathy has been successful.
Collapse
Affiliation(s)
- Daniel L Bohl
- Department of Internal Medicine, Washington University School of Medicine, St. Louis, Missouri 63110, USA
| | | |
Collapse
|