Funding for this research was provided by:
Natural Science Foundation of Fujian Province (No. 2017J01238)
Text and Data Mining valid from 2019-08-05
Received: 5 June 2019
Accepted: 10 July 2019
First Online: 5 August 2019
Ethics approval and consent to participate
: The present study was approved by the Protection of Human Ethics Committee of Fujian Provincial Maternity and Children’s Hospital, affiliated hospital of Fujian Medical University (NO.1001). Written informed consent for participation was received for all patients.
: All patients have provided written informed consent prior to participating in the present study.
: The authors declare that they have no competing interests.