Director of Hepatobiliary and Pancreatic Vascular Surgery, Chief Physician, Standing Member of Vascular Surgery Physicians' Branch of Shandong Physicians' Association, Vice Chairman of Vein Subspecialty Committee, Member of Vascular Surgery Committee of Shandong Medical Association, Vice Chairman of Varicose Veins of Lower Extremity and Bulgular Syndrome Group, Member of Splenic and Portal Hypertension Group of Surgical Committee of Shandong Medical Association, Standing Member of Hepatobiliary and Pancreatic Lumboendoscopy Minimally Invasive Physicians' Branch of Shandong Physicians' Association, and Member of Peripheral Vascular Intervention Committee of Shandong Provincial Physicians Association