National Ambulance Service, Accra, Accra Metropolitan District, Ghana
University of Florida, Gainesville, Florida, United States
CV Foundation, Gressier, Ouest, Haiti
University of Florida Oaks Eye Center, Gainesville, Florida, United States
University of Florida CTSI Clinical Research Center, Gainesville, Florida, United States
University of Florida, Gainesville, Florida, United States
Name withheld to protect anonymity of study site, Gainesville, Florida, United States
University of Florida College of Health & Human Performance, Gainesville, Florida, United States
University of Florida Health Shands, Gainesville, Florida, United States