title: From the Centers for Disease Control and Prevention. Colorectal cancer test use among persons aged > or =50 years--United States, 2001.
mesh_terms: D000368:Aged; D001466:Barium Sulfate; D040343:Behavioral Risk Factor Surveillance System; D003113:Colonoscopy / Q000706:statistics & numerical data*; D015179:Colorectal Neoplasms / Q000175:diagnosis* / Q000517:prevention & control; D006801:Humans; D008403:Mass Screening / Q000706:statistics & numerical data*; D008875:Middle Aged; D009780:Occult Blood; D012812:Sigmoidoscopy / Q000706:statistics & numerical data; D014481:United States / Q000453:epidemiology
chemical_list: D001466:Barium Sulfate