Prevention of severe infectious complications after colorectal surgery using preoperative orally administered antibiotic prophylaxis (PreCaution): study protocol for a randomized c... Autor Tessa Mulder, Marjolein F. Q. Kluytmans-van den Bergh, Anne Marie G. A. de Smet, Nils E. van ‘t Veer, Daphne Roos, Stavros Nikolakopoulos, Marc J. M. Bonten, Jan A. J. W. Kluytmans, PreCaution Study Group