Co-Investigators
From left to right: Dr. Juan Carlos Martínez (Mexico), Dr. Mara Viveros Vigolla (Colombia), Dr. Antonio Sergio Alfredo Guimaraes (Brazil) and Dr. Fernando García (Ecuador).
From left to right: Dr. Juan Carlos Martínez (Mexico), Dr. Mara Viveros Vigolla (Colombia), Dr. Antonio Sergio Alfredo Guimaraes (Brazil) and Dr. Fernando García (Ecuador).