Guan, Xiaoxue
Wang, Yuchan
Li, Qun
Wei, Ming
Chen, Lili
Cheng, Oumei http://orcid.org/0000-0002-1889-6541
Funding for this research was provided by:
the National Natural Science Foundation of China (81471334, 81100981)
the National Key Clinical Specialties Construction Program of China
Article History
Received: 14 November 2017
Accepted: 12 July 2018
First Online: 17 July 2018
Compliance with ethical standards
: All subjects provided written informed consent and the study was approved by the Ethics Committee of the First Affiliated Hospital, Chongqing Medical University in China.
: The authors declare that they have no conflict of interest.