Central Harlem STD Clinic, New York, New York, United States
Centro Latino Americano de Enfermedades de Transmission Sexual, San Juan, Puerto Rico
National Rehabilitation Hospital, Washington, District of Columbia, United States
Puget Sound Health Services, Seattle, Washington, United States
Kamuzu Central Hospital, Bottom Hospital, Lilongwe, Malawi
American Academy of Family Physicians National Research Network (AAFP-NRN)., Leawood, Kansas, United States
Evanston Northwestern Healthcare (ENH) internal medicine, family practice, and OB/GYN practices, Evanston, Illinois, United States
Great Lakes Research into Practice Network (GRIN), Ann Arbor, Michigan, United States
Care South clinics (Various), Hartsville, South Carolina, United States
Marcus Institute, Atlanta, Georgia, United States
University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States
Area 25 Health Center, Lilongwe, Malawi
University of South Carolina, Columbia, South Carolina, United States