1. School of Medicine, Universidad Espíritu Santo – Ecuador, Guayaquil, Ecuador;
2. Vanderbilt University Medical Center, Nashville, Tennessee, USA;
3. Department of Medicine, New York University, New York, New York, USA;
4. Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA;
5. Community Center, The Atahualpa Project, Atahualpa, Ecuador;
6. School of Medicine, Stony Brook University, New York, New York, USA