By transfecting tumor cells with both IL-12 and B7 . 1 cDNAs , it may be possible to use these modified targets as vaccines .
by transfecting tumor cells with both il-12 and b7 . 1 cdnas , it may be possible to use these modified targets as vaccines .
O O O O O O O O O O O O O O O O O O O O O O O B-other_name O