Name Info Provider Link
Full text from AIR - Univ. Milan free resource Archivio Istituzionale della Ricerca Unimi https://air.unimi.it/handle/2434/593873
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=30289470.ui
Full Text at the institutional repository free resource Andalusian Health Repository http://hdl.handle.net/10668/13033
subscription/membership/fee required Silverchair Information Systems https://academic.oup.com/jid/article-lookup/doi/10.1093/infdis/jiy584