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100 1 _aAFP
245 _aUS waives patent protection on virus vaccines /
_cBy AFP
520 _uhttps://manilastandard.net/index.php/news/world-news/353781/us-waives-patent-protection-on-virus-vaccines.html
653 _avirus vaccines
653 _apatent protection
653 _aUS
786 _aManila Standard
_bMay 7, 2021
856 4 _uhttp://elibrary.doh.gov.ph/cgi-bin/koha/opac-retrieve-file.pl?id=b02cd8ec27870d72a8610fbd09587b17
942 _cNC
999 _c4503
_d4503