Text and Data Mining valid from 2019-10-04
Received: 29 May 2019
Accepted: 30 August 2019
First Online: 4 October 2019
Ethics approval and consent to participate
: The study was approved by the ethics committee of the Medical Research Institute (10 GR 0008812).An informed written consent was obtained from all mothers before participation in the study according to the Declaration of Helsinki.
: A written consent for publication was obtained from all participants.
: The authors declare that they have no competing interests.