Prevention and management of complications in the treatment of colorectal tumor 并列题名：Prevention and management of complications in the treatment of colorectal tumor Prevention and management of complications in bariatric surgery Prevention and management for complications of interventional bronchoscopy Prevention and treatment of complication in general surgery operation 并列题名：Prevention and management for complications of interventional bronchoscopy prevention and management of complications 并列题名：Prevention and treatment of complication in general surgery operation Operation and management of urban wastewater treatment plant Prevention and management of common geriatric diseases