Name Info Provider Link
subscription/membership/fee required Atypon https://www.liebertpub.com/doi/10.1089/apc.2006.20.399?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub 0pubmed
HIV free resource MedlinePlus Health Information https://medlineplus.gov/hiv.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=16789853.ui
Drug Use and Addiction free resource MedlinePlus Consumer Health Information https://medlineplus.gov/druguseandaddiction.html