Multicenter phase II study on the efficacy of an oral nutritional supplement containing eicosapentaenoic acid in advanced gastric cancer patients with cachexia. - Kawabata R; Nishikawa K; Kawase T; Kawada J; Kimura Y; Kashima Y; Ueda S; Takeno A; Shimomura K; Imamura H (Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association, 2025)