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«Hepatitis B virus infection: co-infection with hepatitis C virus, hepatitis D virus, and human immunodeficiency virus». Clin Liver Dis8 (2): 445–60, viii. 2004. doi:10.1016/j.cld.2004.02.005. PMID15481349.
Wilkinson D, Ramjee G, Tholandi M, Rutherford G (2002). Wilkinson, David, επιμ. «Nonoxynol-9 for preventing vaginal acquisition of sexually transmitted infections by women from men». Cochrane Database Syst Rev (4): CD003939. doi:10.1002/14651858.CD003939. PMID12519623.
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Villhauer, Tanya (20 Μαΐου 2005). «Condoms Preventing HPV?». University of Iowa Student Health Service/Health Iowa. Αρχειοθετήθηκε από το πρωτότυπο στις 14 Μαρτίου 2010. Ανακτήθηκε στις 26 Ιουλίου 2009.
Baarda, Benjamin I.; Sikora, Aleksandra E. (2015). «Proteomics of Neisseria gonorrhoeae: the treasure hunt for countermeasures against an old disease». Frontiers in Microbiology6. doi:10.3389/fmicb.2015.01190. ISSN1664-302X; Access provided by the University of Pittsburgh.