Ma, Guo-Fo
Li, Chu-Zhong
Zhang, Ya-Zhuo
Wang, Xin-Sheng
Zhao, Peng
Gui, Song-Bai http://orcid.org/0000-0002-3638-2018
Article History
Received: 8 March 2019
Revised: 9 July 2019
Accepted: 26 July 2019
First Online: 6 September 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The present study was approved by the Ethics Committee of Beijing Tiantan Hospital affiliated to Capital Medical University (Beijing, China).
: All patients were informed of the purpose of this study and signed a written consent form.