RT Journal Article SR Electronic T1 From errant enzymes to colon cancers JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 488 OP 488 DO 10.1136/jmg.39.7.488 VO 39 IS 7 YR 2002 UL http://jmg.bmj.com/content/39/7/488.abstract AB