ecrin-mdr-crcClinical2021Colorectal CancerColorectal CancerInterventionalhttps://newmdr.ecrin.org/Study/2760407China12ECRIN MDRRecruitingfalseA clinical study of robotic surgery combined with perioperative enhanced recovery surgery scheme for rectal cancer patients by transanal specimen collection without auxiliary incision in the abdomenInterventions: experimental group:robotic NOSES combined with perioperative ERAS Primary outcome(s): Complication rate within 30 days after surgery Study Design: Single arm2021-12-152760407ChiCTR2100053580