Liu, Yunxin
Ding, Shifei
Jia, Weikuan
Article History
First Online: 24 April 2020
Compliance with ethical standards
:
: All authors declare that they have no conflict of interest.
: All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the 1975 Declaration of Helsinki, as revised in 2008 (5). Additional informed consent was obtained from all patients for which identifying information is included in this article.
: This article does not contain any studies with human or animal subjects performed by the any of the authors.