Liu, Qi
Wei, Xiaoer
Guan, Juanjuan
Wang, Ran
Zou, Derong
Yu, Lvfeng
Funding for this research was provided by:
Project of Shanghai Municipal Commission of Health and Family Planning (201540177)
Article History
Received: 22 March 2017
Accepted: 24 January 2018
First Online: 1 February 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The research was approved by the local Ethical Committee of Shanghai Jiao Jong University Affiliated Sixth People’s Hospital (No. 2015-KY-003(T)).
: All the participants took part voluntarily in this study, and the verbal consent from each of them was taken after being informed about the nature of the study detailedly.