Funding for this research was provided by:
Department of Health Philippines (N/A)
Received: 22 March 2019
Accepted: 10 September 2019
First Online: 8 October 2019
Ethics approval and consent to participate
: The investigators adhered to the ethical principles of CIOMS, Declaration of Helsinki (2008), and good research practices in vulnerable communities. Written approval for conducting the research was obtained from the local government units (LGU) involved prior to implementation of any research activity. Moreover, all study documents (research protocol, English and translated versions of information sheets and written informed consent forms, and data collection forms) were submitted to and approved by RITM Institutional Review Board (Project ID No. 2015-01, IRB Registration Number 00000919, Office of the Human Research Protection of the US Department of Health and Human Services).
: Not applicable
: The authors declare that they have no competing interests.