Corresponding Author

E-mail address: liangdesen@hotmail.com

Department of General Surgery, Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, China

Correspondence Yuying Fan, The Second Affiliated Hospital and College of Nursing, Harbin Medical University, Harbin, 150086 Heilongjiang, China.

Email: fanyy@hrbmu.edu.cn

Desen Liang and Qinghui Meng, Department of General Surgery, Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001 Heilongjiang, China.

Email: liangdesen@hotmail.com (D. L.) and mengqinghuihmu@hotmail.com (Q. M.)