Institution: | Han Li, Yan-Bing Zhou, Department of General Surgery, Affiliated Hospital of Qingdao University, Qingdao 266071, Shandong Province, ChinaJin-Shen Wang, Ke-Shu Shan, Le-Ping Li, Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250012, Shandong Province, ChinaLin-Jun Mu, Department of Emergency Surgery, Weifang People’s Hospital, Weifang 261000, Shandong Province, China |