Prospective Multicenter Study to Clarify the Frequency of Peristomal Skin Disorders and Appropriate Evaluation Time in Patients With Malignant Rectal Tumors. - Shiraishi T; Nishizawa Y; Nakajima M; Kado R; Ogawa H; Naomi S; Owada Y; Enomoto T; Yazawa S; Hamahata Y; Isogami Y; Kitagawa K; et al. (Annals of surgery, 2026)