Funding for this research was provided by:
Henan Provincial Overseas Training Programs for Health Planning Science and Technology Talents (2018090)
Article History
Received: 2 December 2018
Accepted: 20 September 2019
First Online: 15 October 2019
Ethics approval and consent to participate
: The study was approved by the Medical Scientific Research Ethics Committee of Henan Provincial People’s Hospital. All 38 patients gave written informed consent for participating in this study.
: Not applicable.
: The authors declare that they have no competing interests.