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Kolfschoten NE, Gooiker GA, Bastiaannet E, van Leersum NJ, van de Velde CJ, Eddes EH, Marang-van de Mheen PJ, Kievit J, van der Harst E, Wiggers T, Wouters MW, Tollenaar RA; Dutch Surgical Colorectal Audit group.Kolfschoten NE, et al.BMJ Qual Saf. 2012 Jun;21(6):481-9. doi: 10.1136/bmjqs-2011-000439. Epub 2012 Apr 4.BMJ Qual Saf. 2012.PMID: 22491528