摘要：

Polyps of the colon and rectosigmoid, potentially precancerous lesions, have heretofore required laparotomy and colotomy for removal. Against a background experience of 1600 fiberoptic colonoscopies without complication a program in endoscopic removal of colonic polyps from all parts of the colon was undertaken. Three hundred and three polyps, 0.5 to 5.0 cm in diameter, were safely removed by...

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