1. BSN, RN, Perioperative Surgical Area, Department of General Surgery, Galdakao-Usansolo Hospital, Galdakao, Bizkaia, Spain
2. MSc, RN, Perioperative Surgical Area, Department of Urology, Galdakao-Usansolo Hospital, Galdakao, Bizkaia, Spain
3. BSN, RN, Perioperative Surgical Area, Department of Gynecology, Galdakao-Usansolo Hospital, Galdakao, Bizkaia, Spain
4. MSc, Biostatistician Research Unit, Galdakao Usansolo Hospital, Galdakao, Bizkaia; Kronikgune Institute for Health Services Research, Barakaldo, Bizkaia; and Health Services Research on Chronic Patients Network (Redissec), Bilbao, Bizkaia, Spain
5. PhD, Consultant Surgeon and Professor, Department of General Surgery, Faculty of Medicine and Surgery, University of the Basque Country, and Head of Colorectal Surgery, Galdakao Usansolo Hospital, Galdakao, Bizkaia, Spain.