University of California, San Francisco, San Francisco, California, United States
Makerere University Medical School, Kampala, Uganda
Denver Department of Public Health and Hospitals, Denver, Colorado, United States
Chicago VA Medical Center (Lakeside), Chicago, Illinois, United States
Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
Duke University Medical Center, Durham, North Carolina, United States
Thomas Street Clinic, Houston, Texas, United States
New York University School of Medicine, New York, New York, United States
University of California, San Francisco, San Francisco, California, United States
Denver Department of Public Health and Hospitals, Denver, Colorado, United States
Hines VA Medical Center, Hines, Illinois, United States
University of Manitoba, Winnipeg, Manitoba, Canada
LA County/USC Medical Center, Los Angeles, California, United States
Chicago VA Medical Center (Lakeside), Chicago, Illinois, United States
Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
LA County/USC Medical Center, Los Angeles, California, United States
University of California, San Francisco, San Francisco, California, United States
Chicago VA Medical Center (Lakeside), Chicago, Illinois, United States
University of British Columbia, Vancouver, British Columbia, Canada
LA County/USC Medical Center, Los Angeles, California, United States
Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
Seattle King County Health Department, Seattle, Washington, United States
LA County/USC Medical Center, Los Angeles, California, United States
University of California, San Francisco, San Francisco, California, United States
New York University School of Medicine, New York, New York, United States
University of British Columbia, Vancouver, British Columbia, Canada
Washington, D.C. VAMC, Washington, District of Columbia, United States