Colorectal cancer screening: physicians' knowledge of risk assessment and guidelines, practice, and description of barriers and facilitators.
Sewitch MJ, Burtin P, Dawes M, Yaffe M, Snell L, Roper M, Zanelli P, Pavilanis A.
Can J Gastroenterol. 2006 Nov; 20(11):713-8.
[Can J Gastroenterol. 2006]