title: Colorectal cancer screening: now is the time.
authors.affiliation: Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA.
authors.forename: S J
authors.initials: SJ
authors.lastname: Winawer
authors.forename: A G
authors.initials: AG
authors.lastname: Zauber
mesh_terms: D000368:Aged; D003113:Colonoscopy; D015179:Colorectal Neoplasms / Q000175:diagnosis*; D005260:Female; D006266:Health Education; D006801:Humans; D008297:Male; D008403:Mass Screening / Q000379:methods*; D008875:Middle Aged; D009780:Occult Blood; D009864:Ontario; D012812:Sigmoidoscopy