RT Journal Article SR Electronic T1 Experience of discharge from colonoscopy of mutation negative HNPCC family members JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP e55 OP e55 DO 10.1136/jmg.40.5.e55 VO 40 IS 5 A1 E M A Bleiker A1 F H Menko A1 B G Taal A1 I Kluijt A1 L D V Wever A1 M A Gerritsma A1 H F A Vasen A1 N K Aaronson YR 2003 UL http://jmg.bmj.com/content/40/5/e55.abstract AB