Screening for cancer: colon, lung and skin cancers.
D003110:Colonic Neoplasms / Q000175:diagnosis*; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging*; D008297:Male; D008545:Melanoma / Q000175:diagnosis* / Q000473:pathology; D009780:Occult Blood; D012680:Sensitivity and Specificity; D012812:Sigmoidoscopy; D012878:Skin Neoplasms / Q000175:diagnosis* / Q000473:pathology; D036542:Tomography, Spiral Computed