Sergio Hernández-Villafranca, Department of General Surgery and Digestive System, Hospital Fundación Jiménez Díaz, Madrid, Spain
Siyuan Qian-Zhang, Department of General Surgery and Digestive System, Hospital Fundación Jiménez Díaz, Madrid, Spain
Damián García-Olmo, Department of Surgery, Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain
Pedro Villarejo-Campos, Servicio Cirugía General y Aparato Digestivo, Hospital Fundación Jiménez Díaz, Madrid, España