Funding for this research was provided by:
the Project of Yu-Miao (GXWCH-YMJH-2017006)
the Open Project Program of the Shanghai Key Laboratory of Birth Defect (grant no. 16DZKF1014)
Text and Data Mining valid from 2019-06-13
Received: 14 January 2019
Accepted: 4 June 2019
First Online: 13 June 2019
Ethics approval and consent to participate
: All procedures in this study were approved by the Institutional Review Boards and Ethics Committees of Guangxi Maternal and Child Health Hospital. Detailed written informed consent was obtained from all participants. For the patients who are underage, written informed consent for participation in this study was obtained from the patients’ parents or guardians.
: Not applicable.
: The authors declare that they have no competing interests.