Dumrongwongsiri, Oraporn http://orcid.org/0000-0002-6527-645X
Chatvutinun, Suthida
Phoonlabdacha, Phanphen
Sangcakul, Areeporn
Chailurkit, La-or
Siripinyanond, Atitaya
Suthutvoravut, Umaporn
Chongviriyaphan, Nalinee
Article History
Received: 8 January 2018
Accepted: 7 March 2018
First Online: 16 March 2018
Compliance with Ethical Standards
: The study protocol was approved by the Committee of Human Rights Related to Research Involving Human Subjects, Faculty of Medicine of Ramathibodi Hospital, Mahidol University, Bangkok, Thailand (protocol number 01-54-01). All mothers provided written inform consent before enrollment. All procedures performed in the study were in accordance with the ethical standards of the committee and with the 1964 Helsinki declaration.
: The authors declare that they have no conflict of interest.