ecrin-mdr-crcClinical2016gastric cancer, colorectal cancer, esophageal cancer, esophageal achalasiaGastric Cancer, Colorectal Cancer, Esophageal Cancer, Esophageal AchalasiaObservationalhttps://newmdr.ecrin.org/Study/2649595Japan1ECRIN MDRRecruitingfalseThe study of changes in neutrophil function and physical stress during the perioperative period of endoscopic operationPrimary outcome(s): changes in serum opsonic activity on the next day and at 4 days after endoscopic operation2016-01-152649595JPRN-UMIN000034514