TY - JOUR AU - Okabe, S TI - Lymph node metastasis in T1 adenocarcinoma of the colon and rectum JO - J Gastrointest Surg IS - 08 VL - 8 PY - 2004 DO - 10.1016/j.gassur.2004.09.038 SP - 1032 EP - 1039 N1 - ; discussion 1039-1040 ER -