Funding for this research was provided by:
Innovation Development Foundation of Tangdu Hospital (2016JCYJ005)
Received: 12 August 2019
Accepted: 29 November 2019
First Online: 23 December 2019
Ethics approval and consent to participate
: This study was reviewed and approved by the Institutional Human Experiment and Ethics Committee of Tangdu Hospital.
: Not applicable.
: The authors declare that they have no competing interests.