Funding for this research was provided by:
the “Six One” Project of Jiangsu Province (LGY2016039)
Natural Science Research Project of Jiangsu Higher Education Institutions (17KJA3320006)
Qing Lan Project of Jiangsu Province
the Nature Science Foundation of Jiangsu Province (BK20161175)
Article History
Received: 14 May 2020
Accepted: 26 July 2020
First Online: 3 August 2020
Ethics approval and consent to participate
: This prospective, double-blind, randomized controlled trial was approved by the ethics committee of Feng Xian People’s Hospital and the Affiliated Hospital of Xuzhou Medical University. Written informed consent was obtained from all participants.
: Not applicable.
: The authors report no conflicts of interest in this work.