Erratum to: Multicentre randomized controlled trial comparing ferric(III) carboxymaltose infusion with oral iron supplementation in the treatment of preoperative anaemia in colorectal cancer patients. Issue 1 (December 2015) - Borstlap, WAA; Buskens, CJ; Tytgat, KMAJ; Tuynman, JB; Consten, ECJ; Tolboom, RC; Heuff, G.; van Geloven, AAW; van Wagensveld, BA; Wientjes, CACA; Gerhards, MF; de Castro, SMM; et al.