Hui, Dongna https://orcid.org/0000-0003-4331-7027
Han, Xiaofang
Wang, Xiaocheng
Ren, Wenjuan
Lei, Xin
Liu, Jianrong
Dong, Lina
Li, Hong
Article History
Received: 5 October 2019
Accepted: 30 January 2020
First Online: 19 February 2020
Compliance with ethical standards
: The study was approved by the Ethics Review Board of Shanxi Provincial People’s Hospital ([2019] Provincial Medical Opinions No. 75).