Hip Hop with Doctor Ho 1996 David Ho talks about AIDS research
	Little Green Men 1968 Jocelyn Bell discovers a pulsar
Ecology is Hep 1962 Rachel Carson discusses her new book, "Silent Spring"
	Paralyzing Polio 1954 Jonas Salk and Albert Sabin develop polio vaccines
Miracle Pill 1952 Henri Laborit and Pierre Deniker develop a "miracle drug" for the mentally ill

Bibliography for On the Edge features

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