Funding for this research was provided by:
Major New Drugs Innovation and Development (2012ZX09101201)
Received: 10 May 2018
Accepted: 20 September 2018
First Online: 16 October 2018
Ethics approval and consent to participate
: This study was an observational study. No medical intervention was conducted on the observed objects. The experiment protocol was approved by the Ethical Committee of the First Affiliated Hospital of Henan University of TCM (Approval number 2014HL~ 053). In addition, this protocol has international registration in China clinical trial registration center (ChiCTR~OPC~ 14,005,718). Written informed consents were obtained from all participants.
: There was no individual person’s data in this research.
: The authors declare that they have no competing interests.
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