Cross-sectional study of gender differences in the perception of body image during cancer-induced weight loss: study protocol for the GRACE study (Global Research on Appearance in Cancer). - Goodrose-Flores C; Bonn S; Trolle Lagerros Y; Arends J; Blum D; Figueroa Donoso C; Frazier H; Lin SA; Romboli E; Hoang Van M; Nguyen NB; Nguyen V; et al. (BMJ open, 2026)