Gao, Ya
Li, Jipin
Ma, Xueni
Wang, Jiancheng
Wang, Bo
Tian, Jinhui http://orcid.org/0000-0002-0054-2454
Chen, Gen
Article History
Received: 25 November 2018
Accepted: 12 March 2019
First Online: 21 March 2019
Compliance with ethical standards
:
: The authors declare that there is no conflict of interest.
: Ethical approval and patient consent are not required since this is an overview based on published studies.
: All analyses were based on previously published studies; thus, no informed consent is required.