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Pudney J, Oneta M, Mayer K, Seage G, Anderson D (1992). "Pre-ejaculatory fluid as potential vector for sexual transmission of HIV-1". Lancet. 340 (8833): 1470. doi:10.1016/0140-6736(92)92659-4. PMID1360584. S2CID7106584.
Pudney J, Oneta M, Mayer K, Seage G, Anderson D (1992). "Pre-ejaculatory fluid as potential vector for sexual transmission of HIV-1". Lancet. 340 (8833): 1470. doi:10.1016/0140-6736(92)92659-4. PMID1360584. S2CID7106584.