1. Ophthalmologist – Cornea, External Diseases and Laser Refractive Surgery, Master of Science in Epidemiology/Asociación Médica de Los Andes, Bogotá, Colombia
2. Physician and Statistician, Master of Science in Epidemiology, PhD(C), Mental Health Research Group, CES University School of Medicine, Medellín, Colombia
3. Gastroenterologist, Master of Science in Clinical Epidemiology, Clinical Research Director Fundación Santa Fé de Bogotá, Bogotá, Colombia