Critical illness is accompanied by a blunted anabolic response to duodenal protein administration that is not due to impaired protein digestion or amino acid absorption. (December 2020) - Chapple, L.S.; Kouw, I.W.; Summers, M.J.; Weinel, L.M.; Gluck, S.; Raith, E.; Louis, R.; Deane, A.M.; van Loon, L.J.; Chapman, M.J.