Funding for this research was provided by:
Jiangsu Youth Medical Talents Project (QNRC2016310)
Clinical Medical Science and Technology Development Foundation of Jiangsu University (Grant No.2018, 94)
Received: 8 October 2019
Accepted: 29 November 2019
First Online: 11 December 2019
Ethics approval and consent to participate
: This study was performed in accordance with the Declaration of Helsinki and approved by the Ethics Committee of Jiangsu University. All participants signed an informed consent.
: Not applicable.
: The authors declare that they have no competing interests.