Han, Yixuan
Liu, Yanying
Liu, Xuejun
Yang, Wenhao
Yu, Ping
Wang, Jian
Hu, Yuqin
Shu, Rong
Song, Haicheng
Wang, Jierui
Yuan, Wei
Liu, Bailu
Li, Na
Shi, Huijing
Yang, Wenfang
Li, Lina
Hao, Yudi
Cui, Liufu http://orcid.org/0000-0002-8134-7764
Article History
Received: 8 August 2019
Revised: 8 September 2019
Accepted: 21 September 2019
First Online: 29 October 2019
Compliance with ethical standards
: The study was approved by the Ethics Committees of Kailuan General Hospital following the guidelines outlined by the Helsinki Declaration. All subjects agreed to participate in this study and provided written informed consent.
: None.