?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Balla&rft.aufirst=Gy%C3%B6rgyi&rft.au=+Balla+Gy%C3%B6rgyi&rft.atitle=Karik%C3%B3+Katalin%3A+vakcin%C3%A1t+fejleszteni+els%C5%91sorban+mor%C3%A1lis+k%C3%B6telezetts%C3%A9g&rft.date=2020.+december+05.&rft.title=Hvg.hu&rft.genre=article