Gottlieb MS, Schroff R, Schanker HM et al: Pneumocystis carinii pneumonia and mucosal candidiasis in previously healthy homosexual men. Evidence of a new acquired cellular immunodeficiency. N Engl J Med 305: 1425-1431, 1981
Cunningham ET, Belfort R: Epidemiology. HIV/AIDS and the Eye: A Global Perspective.1-17, American Academy of Ophthalmology, San Francisco, 2002