Não informado. National Nosocomial Infections Study. Center for Disease Control.
Lua i Stíl Chicago (17ú heag.)Não informado. National Nosocomial Infections Study. Atlanta, Ga: Center for Disease Control.
Lua MLA (8ú heag.)Não informado. National Nosocomial Infections Study. Center for Disease Control.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.