Endoscopic submucosal dissection(ESD)has become a widely used endoscopic technique for the treatment of early colorectal tumors due to the advantages of high complete resection rate,low recurrence rate,small restriction,minimal trauma,and rapid recovery.However,because ...MORE Endoscopic submucosal dissection(ESD)has become a widely used endoscopic technique for the treatment of early colorectal tumors due to the advantages of high complete resection rate,low recurrence rate,small restriction,minimal trauma,and rapid recovery.However,because the difficult and long operation of ESD,as well as t...