Xu, Hong
Xie, Jinwei
Lei, Yiting
Huang, Qiang
Huang, Zeyu
Pei, Fuxing
Funding for this research was provided by:
Ministry of Health of the People's Republic of China (201302007)
Article History
Received: 29 January 2019
Accepted: 20 May 2019
First Online: 29 May 2019
Ethics approval and consent to participate
: Not applicable. This study was a secondary analysis of a large database and deemed exempt by the hospital’s institutional review board (2012-268).
: Not applicable. No conflict of interest exists in the submission of this manuscript, and the manuscript is approved by all authors for publication.
: The authors declare that they have no competing interests.