National health insurance and the sixth stool guaiac.
D003110:Colonic Neoplasms / Q000175:diagnosis / Q000191:economics; D003362:Cost-Benefit Analysis; D006138:Guaiac; D006801:Humans; D009310:National Health Insurance, United States / Q000191:economics*; D011640:Public Policy; D014481:United States
D006138:Guaiac