Received: 13 November 2018
Accepted: 25 July 2019
First Online: 6 August 2019
Ethics approval and consent to participate
: This study was approved by the Local Ethical Committee of Zekai Tahir Burak Women’s Health and Research Hospital. Written informed consent for participation in the study was obtained from the parents of the infants.
: Not applicable.
: The authors declare that they have no competing interests.