http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
HIV and youth (National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention (U.S.) Division of HIV/AIDS Prevention)
National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention (U.S.)
Centers for Disease Control and Prevention.