Have you been checked?
Heilman
R S
RS
D001294:Attitude to Health; D003110:Colonic Neoplasms / Q000517:prevention & control*; D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening; D010820:Physicians; D011871:Radiology; D012004:Rectal Neoplasms / Q000517:prevention & control*