Department of Gastroenterology,Yantai Yuhuangding Hospital affiliated to Medical College of Qingdao University, Yantai, Shandong 264000, China;
Department of Gastroenterology,Yantai Yuhuangding Hospital affiliated to Medical College of Qingdao University, Yantai, Shandong 264000, China;
Department of Gastroenterology,Yantai Yuhuangding Hospital affiliated to Medical College of Qingdao University, Yantai, Shandong 264000, China;
Department of Gastroenterology,Yantai Yuhuangding Hospital affiliated to Medical College of Qingdao University, Yantai, Shandong 264000, China;
Department of Abdominal Surgery,Yantai Yuhuangding Hospital affiliated to Medical College of Qingdao University, Yantai, Shandong 264000, China;
Department of Abdominal Surgery,Yantai Yuhuangding Hospital affiliated to Medical College of Qingdao University, Yantai, Shandong 264000, China;