@book{4833,
	author = {De Vera-Ruiz, Ellalyn},
	title = {Sinovac, Pfizer 'most chosen' vaccine brands among Filipinos — SWS poll /},
	url = {http://elibrary.doh.gov.ph/cgi-bin/koha/opac-retrieve-file.pl?id=29aac50f7f911c31663a4048bce24b22}
}