Funding for this research was provided by:
Department of Science and Technology of Sichuan Province (No.2017-919-25)
the Science Foundation of Sichuan Province (2018FZ0041)
Article History
Received: 21 May 2020
Accepted: 14 August 2020
First Online: 20 August 2020
Ethics approval and consent to participate
: This study was approved by the ethical committees at the West China Second University Hospital of Sichuan University.
: Written informed consent was obtained from each couple for publication of potentially identifying images and clinical details of the patient and fetal individual identifiable data and images. A copy of the written consent is available for review by the Editor of this journal.
: None of the authors has any conflict of interest to declare.