Funding for this research was provided by:
PhD research startup project of ganzhou people's hospital (Bsqd2018001)
Ganzhou Science and Technology Bureau Project (GZ2018ZSF263)
Received: 11 March 2020
Accepted: 12 May 2020
First Online: 25 May 2020
Ethics approval and consent to participate
: The study was approved by the human ethic committee of Ganzhou People’s Hospital. All patients provided written informed consent and the project was in accordance with the Helsinki Declaration of 1975.
: Informed consent was obtained from all individual participants included in the study.
: The authors declare that they have no competing interests.