Funding for this research was provided by:
Science and Technology Planning Project of Shenzhen Municipality (JCYJ20160428175005906, JCYJ20180228162311024)
Received: 22 August 2019
Accepted: 20 March 2020
First Online: 19 April 2020
Change Date: 24 January 2022
Change Type: Correction
Change Details: A Correction to this paper has been published:
Change Details: https://doi.org/10.1186/S12879-021-06601-X
Ethics approval and consent to participate
: The verbal informed consents were obtained from all individual participants included in the study. The study and the informed consents procedure were approved by Peking University Shenzhen Hospital Medical Ethics Committee (20140406).
: Not applicable.
: The authors declare that they have no competing interests.