Colorectal cancer screening in Canada: it's time to act.
Schabas
Richard E
RE
York Central Hospital, Richmond Hill, ON.
D002170:Canada; D003113:Colonoscopy; D015179:Colorectal Neoplasms / Q000517:prevention & control*; D008403:Mass Screening; D009780:Occult Blood; D012812:Sigmoidoscopy