Surgical management of stage IV gastric adenocarcinoma: A systematic review and expert recommendations from the Spanish Cooperative Group for the Treatment of Digestive Tumours (TTD) and the Spanish Association of Surgeons (AEC) Paula Jimenez-Fonseca; Marcos Bruna; Javier Gallego; Mónica Miró; Mireia Gil; Fernando Pereira; Gema Marín; Delia Cortés; Roberto Pazo; Mariagiulia Dal Cero; Elena Martín; Fernando Rivera;