TY - GEN AU - BONADIES,A TI - Endoscopy in rectal and sigmoid tumors SN - 0032-2644 PY - 2008///1016 KW - Colon, Sigmoid KW - Endoscopy KW - Humans KW - Neoplasms KW - Rectal Neoplasms KW - Rectum KW - Sigmoid Neoplasms N1 - Publication Type: Journal Article ER -