the Affliated Hospital of Qingdao University, Qingdao, Shandong, China
Affiliated Hospital of Qingdao University Phase I Clinical Research Center, Qingdao, Shandong, China
The Affiliated Hospital of Qingdao University Phase I Clinical Research Center, Qingdao, Shandong, China
The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
Department of Gastrointestinal Surgery, Qingdao University Affiliated Hospital, Qingdao, Shandong, China
The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
The Affiliated Hospital of Qingdao University Phase I Clinical Research Center, Qingdao, Shandong, China