1. Department of Surgery, Universidad Militar Nueva Granada, Bogotá, Colombia.
2. Department of Surgery, Los Cobos Medical Center, Bogotá, Colombia.
3. Department of Surgery, Universidad El Bosque, Bogotá, Colombia.
4. Department of Surgery, Hospital Simón Bolívar, Bogotá, Colombia.
5. Research Unit, School of Medicine, Universidad de los Andes, Bogotá, Colombia.
6. Research Unit, Medical and Surgical Research Center, Future Surgeons Chapter, Colombian Surgery Association, Bogotá, Colombia.
7. Research Unit, International Coalition on Surgical Research, Universidad Nacional Autónoma de Nicaragua, Managua, Nicaragua.
8. Research Unit, Grupo de Innovación e Investigación Quirúrgica, School of Medicine, Universidad Autónoma de Bucaramanga, Bucaramanga, Colombia.