1. Department of Urology; Reina Sofia University Hospital; Cordoba Spain
2. Department of General Surgery; Virgen del Rocio University Hospital/IBiS/CSIC/University of Seville; Seville Spain
3. Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD o Ciberehd); Instituto de Salud Carlos III; Madrid Spain