Oom D M J, Gosselink M P, Schouten W R
Colorectal Research Group, Erasmus Medical Center, Room Ba. 181's, Gravendijkwal 230, 3015 CE Rotterdam, The Netherlands.
Gastroenterol Clin Biol. 2009 Feb;33(2):135-7. doi: 10.1016/j.gcb.2009.01.001. Epub 2009 Feb 5.