550,325 FOCUS Focus on HIV i Proceedings of an International Symposium Brocket Hall, Hertfordshire 23-26 September 1992 /ed. by Harold C. Neu, Jay A. Levy, Robin A. Weiss ; org. com. K.P.W.J. McAdam [et al]. - Edinburgh [etc.] i Churchill Livingstone, 1993. - XII, 383 s. : il.., wykr. ; 24 cm (Frontiers of Infectious Diseases) ISBN 0-443-04919-X