TY  - BOOK
TI  - 678 of 744 sequenced swab samples yield new variants
KW  - new variants
KW  - swab samples
UR  - http://elibrary.doh.gov.ph/cgi-bin/koha/opac-retrieve-file.pl?id=646da2de7d8d5fb11a7637d7f7c8229b
ER  -