Funding for this research was provided by:
The General Scientific Research Project of Zhejiang Education Department (Y201738690)
Received: 12 August 2018
Accepted: 8 January 2019
First Online: 16 January 2019
Ethics approval and consent to participate
: The study was approved by the Wenzhou Medical University Committee for Research Ethics, and was conducted in accordance with the official regulations for clinical research and the Declaration of Helsinki. We have obtained signed informed consent for participation in this study and consent to publish from each participant to report individual patient data.
: Not Applicable.
: There are no competing interests among all the authors. The authors have no proprietary or commercial interest in any materials discussed in this article.
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