Supportive nutrition on recovery of metabolism, nutritional state, health-related quality of life, and exercise capacity after major surgery: a randomized study - Hyltander, A; Bosaeus, I; Svedlund, J; Liedman, B; Hugosson, I; Wallengren, O; Olsson, U; Johnsson, E; Kostic, S; Henningsson, A; Körner, U; Lundell, L; Lundholm, K (Clin Gastroenterol Hepatol, 2005)