Funding for this research was provided by:
Science and Technology Planning Project of Guangdong Province (2008A030201002)
Cardiovascular Research Foundation Project of Chinese Medical Doctor Association (SCRFCMDA201216)
Guangdong Provincial Cardiovascular Clinical Medicine Research Fund (2009X41)
Received: 29 May 2017
Accepted: 10 January 2018
First Online: 16 January 2018
: Jiyan Chen takes responsibility for all aspects of the reliability and freedom from bias of the data presented and their discussed interpretation.
: The study was designed and implemented in accordance with the Guidelines for Good Clinical Practice and with the ethical principles laid down in the.Declaration of Helsinki. All participants gave their written consent to participate.in the study. The study was approved by Guangdong General Hospital institutional ethics research committee.
: Not applicable.
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