TY  - BOOK
AU  - Cinco,Maricar
TI  - Panel studies if different COVID-19 vaccine brands OK for 1st, 2nd doses
KW  - COVID-19 vaccine brands
KW  - Panel studies
UR  - http://elibrary.doh.gov.ph/cgi-bin/koha/opac-retrieve-file.pl?id=637c146da29b2b89001aa09f084bd775
ER  -