Funding for this research was provided by:
Health and Family Planning Commission of Guangdong Province Shenzhen City (SZLY2018007)
Shenzhen People's Hospital Young and Middle-aged Research Funds Cultivation Fund (No. SYKYPY201923)
Guangdong Medical Science and Technology Research Fund Project (No. A2016545)
Text and Data Mining valid from 2019-05-06
Received: 14 February 2019
Accepted: 8 April 2019
First Online: 6 May 2019
Ethics approval and consent to participate
: The Medical Science Ethics Committee of the Southern Medical University approved this study (NFEC-2015-034). Each patient or an appropriate family member provided informed written consent to obtain clinical materials.
: The authors declare that they have no competing interests.
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