Received: 15 March 2021
Accepted: 20 August 2021
First Online: 1 September 2021
: The study protocol was approved by the Ramathibodi Hospital Institutional Review Board (ID 10–61-58). Individual informed consent of the mother and their infant in the study was obtained from the mother prior to participating in a trial. All the experiment protocol involving humans subjects was in accordance with the institutional ethical standards and the Helsinki Declaration.
: Not applicable.
: The authors declare no conflict of interest.