- "Cancer-- I want to know--"1
- 11 de julio de 1991, Dia Mundial de la Población: 11 juillet 1991, Journée mondiale de la population = 11 July 1991, World Population Day1
- 16 de fevereiro, arrancada estadual contra o dengue1
- 1991 calendar1
- 23 horas para vivir tranquilo: la práxis médica a la altura de las circunstancias de nuestro tiempo1
- 31 Maya dene bez tabaka passtzvnoe kooreneeeh mozuhehopasno1
- 500 años de resistencia: andina - amazonica1
- 78% des Français considèrent que les professions de santé ont raison de s'inquiéter1
- A Biolized, Compact, Low Noise, High Performance Implantable Electromechanical Ventricular Assist System1
- A Nutritional Concept of Cancer [with a letter from Joshua Lederberg to Jan Sapp]1
- A Project for the Study of Human Diversity with Special Attention to Vanishing Human Populations1
- A Proposal for a Workshop to Consider Structural and Procedural Changes in the NIH Office of Scientific Integrity1
- A Unique, Efficient, Implantable, Electromechanical, Total Artificial Heart1
- A bad stick can ruin a great education: prevent exposure to HIV and Hepatitis B1
- A guide to methods of birth control1
- A quarter of your patients will get one of these diseases1
- AIDS Panel Breaks Ranks, Backs Free Needles1
- AIDS Walk New York1
- AIDS and Drugs [Editorial] 1
- AIDS, facts for life1