Rodriguez, Jae Joseph Russell B. http://orcid.org/0000-0002-3758-0809
Calacal, Gayvelline C.
Laude, Rita P.
De Ungria, Maria Corazon A. http://orcid.org/0000-0001-7722-5193
Funding for this research was provided by:
Commission on Higher Education
Office of the Vice President for Academic Affairs, UP
Article History
Received: 5 February 2019
Accepted: 14 July 2019
First Online: 2 August 2019
Ethics approval and consent to participate
: Ethical clearance was issued by the University of the Philippines Manila Research Ethics Board (UPMREB Code: 2012-321-01). All sample donors provided written informed consent to participate.
: Not applicable.
: The authors declare that they have no competing interests.