1. Department of Coloproctology Hospital Universitari I Politecnic La Fe Valencia Spain
2. Cardiovascular Surgery Hospital Universitari Son Espases Palma de Mallorca Spain
3. Department of Surgery Hospital Punta de Europa Algeciras Cádiz Spain
4. Department of Gynecologic Oncology Hospital Universitari I Politecnic La Fe Valencia Spain
5. Department of Human Anatomy and Embryology University of Valencia Valencia Spain
6. Coloproctology Unit Hospital 9 de Octubre Valencia Spain