1. Department of General Surgery, Hospital Eugenio Espejo, Quito, Ecuador
2. PGY3 Resident General Surgery, P.U.C.E., Quito, Ecuador
3. College of Medicine, University of Cuenca, Cuenca, Ecuador
4. PGY4 Resident General Surgery, P.U.C.E., Quito, Ecuador
5. PGY1 Resident General Surgery, P.U.C.E., Quito, Ecuador