Xie, Sungel
Xiao, Xin-Ru
Li, Huan
Meng, Guo-Lu
Zhang, Jun-Ting
Wu, Zhen
Zhang, Li-Wei http://orcid.org/0000-0002-5100-2773
Article History
Received: 24 May 2019
Revised: 28 June 2019
Accepted: 29 July 2019
First Online: 6 August 2019
Compliance with ethical standards
: The Beijing Tiantan Hospital Research Ethics Committee approved the study. Due to the retrospective nature of the report, informed consent was not required.
: The authors declare that they have no conflicts of interest.