Liu, Guang Zhong
Zhang, Song
Sun, Dang Hui
Shi, Jing
Bo, Wan Lan
Wang, Wen Nan
Zhang, Chong Yang
Wang, Zhong Hua
Feng, Wei
He, Mei Jiao
Liu, Yuan Yuan
Li, Shuang
Zheng, Lin Qun
Li, Yue
Article History
Received: 30 January 2019
Accepted: 25 April 2019
First Online: 12 May 2019
Compliance with ethical standards
: The study was conducted in accordance with International Conference on Harmonization Guideline for Good Clinical Practice and Declaration of Helsinki and was approved in advance by the Ethics Committee of the First Affiliated Hospital of Harbin Medical University. All subjects provided written informed consents before their participation.
: The authors declare that they have no conflict of interest.