Funding for this research was provided by:
Provincial science and technology project of science and technology department of Guangdong Province (2015B020225007)
Scientific Research Foundation of Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Science (2018bq12)
Received: 10 August 2019
Accepted: 12 January 2020
First Online: 23 January 2020
Ethics approval and consent to participate
: The present study was also approved by the institutional review board of Guangdong Provincial People’s Hospital and signed informed consent for participation was obtained from all study patients.
: Signed informed consent for publication was obtained from all study patients.
: The authors declare that they have no competing interests.