Erratum to: Surg Endosc DOI 10.1007/s00464-016-5071-y

The initials of the authors are incorrect. They should be changed to:

D. W. Schölvinck, H. T. Künzli, S. L. Meijer, C. A. Seldenrijk, M. I. van Berge Henegouwen, J. J. G. H. M. Bergman, B. L. A. M. Weusten.