Cheng, Chun-Yan
Zhang, Yi-Xin
Denas, Gentian
Du, Yao
Jing, Zhi-Cheng
Pengo, Vittorio http://orcid.org/0000-0003-2064-6071
Funding for this research was provided by:
Fuwai Hospital, Chinese Academy of Medical Sciences (Z181100001718203)
Article History
Received: 16 October 2018
Accepted: 27 December 2018
First Online: 2 January 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The procedures followed in this study are in accordance with the ethical standards and to our knowledge, no unethical study was included in the meta-analysis. Aggregate data (meta-analyses) are likely to have the same objectives as the original studies.
: There is no particular ethical problem regarding the original informed consent of patients.