Diabetic Retinopathy

• Institute of Nutrition & Food Technology (INTA) — Santiago, Metropolitan Region, Chile
• Clinica Alemana de Santiago — Santiago, Santiago Metropolitan, Chile

• University of Minnesota Medical Center Fairview — Minneapolis, Minnesota, United States

• Blindness Preventment and Treatment Department, Zhongshan Ophthalmic Center — Guangzhou, Guangdong, China

• Vista Klinik — Binningen, Switzerland

• Joslin Diabetes Center — Boston, Massachusetts, United States
• OuterCape Health Services, Inc — Wellfleet, Massachusetts, United States
• SUNY Upstate Medical University — Syracuse, New York, United States
• University of Endocrine Consultants — Chattanooga, Tennessee, United States

Not specified

• Instituto de Olhos de Goiania — Goiânia, Goiás, Brazil

• AIBILI/CEC - Centro Ensaios Clínicos — Coimbra, Portugal

• Project ECHO — Albuquerque, New Mexico, United States
• CommuniCare Health Centers of San Antonio — San Antonio, Texas, United States

• University of Southern California — Los Angeles, California, United States