Di, Xiaodan
Mai, Hui
Zheng, Zheng
Guo, Kaimin
Morse, Abraham N.
Liu, Huishu
Article History
Received: 7 August 2017
Revised: 26 November 2017
Accepted: 19 December 2017
First Online: 29 May 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study has been reviewed by the hospital ethics committee.