Received: 22 April 2021
Accepted: 4 October 2021
First Online: 4 November 2021
: This study was approved by the Ethical Committee in Health Research at the Dr. Soetomo General Academic Hospital (Reference number. 0203/KEPK/IV/2018). Informed and signed consent was acquired from the parents or authorized representatives of each infant.
: Not applicable.
: The authors declare that there were no conflicting interests.