Funding for this research was provided by:
National Key Research and Development Program of China (2016YFC1000700,2016YFC1000703)
Guangdong Medical Science and Technology Research Project (2016118171659322)
Text and Data Mining valid from 2018-08-22
Received: 5 March 2018
Accepted: 23 July 2018
First Online: 22 August 2018
Ethics approval and consent to participate
: This study was performed with the approval of Medical Ethics Committee of Guangdong Women and Children Hospital, and written informed consent was obtained from the patient.
: The patients in this research have provided their consent for publication.
: The authors declare that they have no competing interests.
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