European Journal of Clinical Microbiology & Infectious Diseases : Official Publication of the European Society of Clinical Microbiology|February 26, 2000
Journal of Acquired Immune Deficiency Syndromes and Human Retrovirology : Official Publication of the International Retrovirology Association|September 1, 1996
European Journal of Clinical Microbiology & Infectious Diseases : Official Publication of the European Society of Clinical Microbiology|February 26, 2000
Journal of Acquired Immune Deficiency Syndromes and Human Retrovirology : Official Publication of the International Retrovirology Association|September 1, 1996