Grigor'eva, G A [The value of preventive studies of the rectum and sigmoid colon in patients with pathology of the digestive organs]. [electronic resource] - Sovetskaia meditsina Nov 1972 - 136-40 p. digital Publication Type: Journal Article ISSN: 0038-5077 Subjects--Topical Terms: AdolescentAdultAgedChildColon, SigmoidColonic Diseases--diagnosisFemaleHumansIntestinal Diseases--diagnosisIntestinal Neoplasms--diagnosisIntestinal Polyps--diagnosisMaleMass ScreeningMiddle AgedProctoscopyRectal Diseases--diagnosisRectal Neoplasms--diagnosisSigmoid Neoplasms--diagnosisSigmoidoscopy