Reply on: The new Body Mass Index as a predictor of postoperative complications in elective colorectal cancer surgery – Letter to Editor. (February 2016) - van Vugt, Jeroen L.A.; Cakir, Hamit; Kornmann, Verena N.N.; Doodeman, Hieronymus J.; Stoot, Jan H.M.B.; Boerma, Djamila; Houdijk, Alexander P.J.; Hulsewé, Karel W.E.