1. USC Institute of Urology, University of Southern California, Los Angeles, California, USA.
2. Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA.
3. Fundación Universitaria Ciencias de la Salud, Hospital de San José, Bogotá, Colombia.
4. Robotic Surgery Program Medicine Faculty, University Hospital of Caracas, Central University of Venezuela, Caracas, Venezuela.