Phase I Clinical Research Center, 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
Phase I Clinical Research Center, Qingdao, Shanndong, China
Phase I Clinical Research Center, Qingdao, Shanndong, China
The affiliated hospital of Qingdao University, Qingdao, Shandong, China
The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China