Ethics statement
The study was approved by the institutional review board.
Name of ethics committee: CENEM. Date: 28/10/2019. Ref: 2019-23-MW.
Funding . This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
Conflicts of interest . The authors declare that they have no conflict of interest.
Contribution to Authorship. NKD is responsible of the study design. MW and FK collected the prenatal and postnatal findings. MW is responsible for the statistical analysis and she wrote down the proof of the manuscript. VFB, BL, AL, CD, YV, SS and NKD made major revisions of the manuscript.