Rikkunshito attenuates nutritional decline and skeletal muscle loss during preoperative chemotherapy for esophageal cancer. - Tsuji T; Inaki N; Kinoshita J; Moriyama H; Yamamoto D; Saito H; Matsui R; Hayashi S; Hayashi K; Sakimura Y; Doden K (Esophagus : official journal of the Japan Esophageal Society, 2025)