Boston University Medical Center, Boston, Massachusetts, United States
Boston Medical Center, Boston, Massachusetts, United States
VA Hospital and Massachusetts General Hospital, Boston, Massachusetts, United States
Kumamoto University, Kumamoto, Japan
Mount Sinai School of Medicine, Department of Medicine, New York, New York, United States
IRCCS Policlinico San Matteo, Pavia, Italy
Health Economics Research Office, Helen Joseph Hospital, Johannesburg, Gauteng, South Africa
Boston Medical center, Boston, Massachusetts, United States
General Clinical Research Center/Boston University School of Public Health, Boston, Massachusetts, United States
Boston Veterans Healthcare System, Boston, Massachusetts, United States
Boston University, School of Medicine, Boston, Massachusetts, United States