Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
FAP: Familial adenomatous polyposis; UC: ulcerative colitis; CRT: chemo-radiotherapy. MP group: Multifaceted AL prevention group; IP: insufficient AL prevention group; is: in situ. Values are presented as the median [interquartile range] or as n (%).
