Perioperative care in digestive surgery: the eras and acerto protocols - brazilian college of digestive surgery position paper - Nascimento, José Eduardo de Aguilar; Ribeiro Junior, Ulysses; Portari Filho, Pedro Eder; Salomão, Alber Bicudo; Caporossi, Cervantes; Colleoni Neto, Ramiro; Waitzberg, Dan Linetzky; Campos, Antonio Carlos Ligocki (ABCD-ARQUIVOS BRASILEIROS DE CIRURGIA DIGESTIVA-BRAZILIAN ARCHIVES OF DIGESTIVE SURGERY, 2024)