Elford, J. , Bolding, G. , Sher, L. (2001) Seeking sex on the internet and sexual risk behaviour among gay men using London gyms . AIDS 200115: 11, 1409-1414 -15.
2.
Koblin, B.A. , Torian, L.V. , Guilan, V.et al. (2000) High prevalence of HIV infection among young men who have sex with men in New York City . AIDS 200014: 12, 1793-1800 .
3.
Mansergh, G. , Marks, G. , Miller, L.et al. (2000) Is 'knowing people with HIV/AIDS' associated with safer sex in men who have sex with men?AIDS 200014: 12, 1845-1851 .
4.
Public Health Laboratory Service (2001) AIDS/H/V Quarterly Surveillance Tables: UK data to end of June 2001. Available at www.phls.co.uk/facts/HIV/HIVNewMenWomen.htm
5.
Weller, S. , Davis S. (2001) Condom effectiveness in reducing hetero-sexual HIV transmission (Cochrane Review). In: The Cochrane Library, Issue 3, 2001, Oxford: Update Software .
