1. Preventing AIDS now;Biggar, R.J.;BMJ,1991
2. Course ofHIV-1 infection in acohort of homosexual and bisexual men: an 11year follow up study;Rutherford, G.W.; Lifson, A.R.; Hersol, N.A.;BMJ,1990
3. Progression of HIV disease in a haemophilic cohort followed for 11years and the effect of treatment;Lee, C.A.; Phillips, A.N.; Elford, J.;BMJ,1991
4. Serial CD4 lymphocyte counts and development of AIDS;Phillips, A.N.; Lee, C.A.; Elford, J.;Lancet,1991
5. Seropositivity for HIV and the development of AIDS or AIDS related condition: three year follow up of the San Francisco General Hospital cohort;Moss, A.R.; Bacchetti, P.; Osmond, D.;BMJ,1988