1 Department of Gastrointestinal Surgery, Shandong Cancer Hospital and Institute, Shandong First Medical University, Shandong Academy of Medical Sciences, 250117, Jinan, China.
2 Department of Respiratory Medicine, Taian Municipal Hospital, 271000, Taian, China.
3 Department of Endocrinology, Affiliated Yantai Yuhuangding Hospital of QingdaoUniversity Medical, 264000, Yantai, China.
4 Department of Endoscopy, Shandong Cancer Hospital and Institute, Shandong First Medical University, Shandong Academy of Medical Sciences, 250117, Jinan, China.
5 Department of Intensive Care Unit, The First People's Hospital of Lianyungang, 222000, Lianyungang, China.
6 Department of Oncological Surgery, Shandong Cancer Hospital and Institute, Shandong First Medical University, Shandong Academy of Medical Sciences, No. 440, Jiyan Road, Huaiyin District, 250117, Jinan, Shandong Province, China. zhoulei2345@163.com.