Differential impact of frailty on surgical and non-surgical site complications in patients with gastric cancer undergoing gastrectomy. - Sakurai K; Kubo N; Tamura T; Hasegawa T; Tamamori Y; Nishimura J; Iseki Y; Nishii T; Inoue T; Yashiro M; Nishiguchi Y; Bito T; et al. (Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association, 2025)