Abstract Background Postoperative cholangitis is a complication of biliary reconstruction during hepatobiliary pancreatic surgery. Most cases are associated with anastomotic stenosis. but there are also cases of cholangitis without stenosis. and treatment can be difficult. https://rxcxvvonl9j1.aioblogs.com/87843178/an-effectiveness-evaluation-model-for-satellite-observation-and-data-downlink-scheduling-considering-weather-uncertainties