Funding for this research was provided by:
the National Institutes of Health (NIH), USA (K12 HL120001-05)
Text and Data Mining valid from 2019-07-12
Received: 19 December 2018
Accepted: 12 April 2019
First Online: 12 July 2019
Compliance with ethics guidelines
: Xinguo JIANG declares that he has no conflict of interest.
: This article does not contain any studies with human or animal subjects performed by the author.