1. Department of General and Digestive Surgery, Unit Colorectal Surgery, “Virgen del Rocío” University Hospital/IBiS/CSIC/University of Seville, Seville, Spain
2. Institute of Biomedicine of Seville (IBiS), “Virgen del Rocío” University Hospital/IBiS/CSIC/University of Seville, Seville, Spain
3. National Institute of Toxicology and Forensic Sciences, Seville, Spain