Mesorectal excision with or without lateral lymph node dissection for clinical stage II, III lower rectal cancer: Long-term follow-up data of Japan Clinical Oncology Group study JCOG0212.

3607Background: We conducted the non-inferiority study of mesorectal excision (ME) alone to ME with lateral lymph node dissection (LLND) for clinical stage II/III rectal cancer without lateral pelv...