TY - GEN AU - Welch,C E TI - Polyps and cancer of the colon SN - 0002-9610 PY - 1979///1229 KW - Cell Transformation, Neoplastic KW - Colon KW - Colonic Neoplasms KW - diagnosis KW - Endoscopy KW - Humans KW - Intestinal Polyps N1 - Publication Type: Journal Article UR - https://doi.org/10.1016/0002-9610(79)90331-3 ER -