The use of mixed reality in the preoperative planning of colorectal surgery: Preliminary experience with a narrative review Umberto Bracale; Biancamaria Iacone; Anna Tedesco; Antonio Gargiulo; Maria Michela Di Nuzzo; Daniele Sannino; Salvatore Tramontano; Francesco Corcione;

Manejo del reflujo gastroesofágico después de la gastrectomía vertical Ester Martínez Negro; Sagrario Martínez Cortijo;

Evaluation of the usefulness of the Clavien-Dindo classification of surgical complications Henry Golder; Daniel Casanova; Vassilios Papalois;