Funding for this research was provided by:
National Natural Science Foundation of China (81402430, 81602541)
Natural Science Foundation of Guangdong Province (2016A030310276)
Foundation for the National Institutes of Health (81670643)
Guangzhou Science, Technology and Innovation Commission (201604020001)
the Collaborative Innovation Project of Guangzhou Education Bureau (1201620011)
the Science and Technology Planning Project of Guangdong Province (2017B030314108)
the Guangzhou Science Technology and Innovation Commission (201704020193)
Text and Data Mining valid from 2018-11-06
Received: 26 August 2018
Accepted: 23 October 2018
First Online: 6 November 2018
Ethics approval and consent to participate
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.Informed consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.
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