Funding for this research was provided by:
National Natural Science Foundation of China (31500143)
Guangzhou Science and Technology Program key projects (201704020225, 201504010032, 201508020252)
Natural Science Foundation of Guangdong Province (2016A030313572)
The State Major Infectious Disease Research Program (2017ZX10103011-003)
Text and Data Mining valid from 2018-07-16
Received: 28 November 2017
Accepted: 29 June 2018
First Online: 16 July 2018
Ethics approval and consent to participate
: The study was approved by The First Affiliated Hospital of Guangzhou Medical University Ethics Committee for research on human beings. The next of kin (>18 years old), caretakers, or guardians gave signed informed consent on behalf of the minors/children for participation in the study.
: Not applicable.
: The authors declare that they have no competing interests.
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