@incollection{An-gao11,
author = {Xu An-gao},
title = {Opportunistic Screening for Colorectal Cancer},
booktitle = {Rectal Cancer},
publisher = {IntechOpen},
address = {Rijeka},
year = {2011},
editor = {Giulio Aniello Santoro},
chapter = {2},
doi = {10.5772/26214},
url = {https://doi.org/10.5772/26214}
}