Funding for this research was provided by:
The basic applied research projects in Shanxi Province (201601D021156)
The Scientific Research Fund of Shanxi Cardiovascular Hospital (20170203)
Text and Data Mining valid from 2019-05-08
First Online: 8 May 2019
Compliance with ethical standards
: The authors declare that they have no conflicts of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: Informed consent is not applicable in this study.