TY  - BOOK
AU  - Leyco,Chino S.
TI  - 50% of PH population vaccinated by yearend
KW  - PH population
KW  - 50%
KW  - vaccinated
UR  - http://elibrary.doh.gov.ph/cgi-bin/koha/opac-retrieve-file.pl?id=6d8153531d25af52cac128140b90d3e7
ER  -