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Dr. Leonard Bachman, Pennsylvania State Secretary of Health, stands by a swine flu vaccine chart during a news conference in the State Capitol…

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Barbara Raboy, administrator of the Sperm Bank of Northern California in Oakland, Calif., holds semen vials which are stored in cryogenic tank…

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Dr. I. Hope Alexander, Pittsburgh health director, congratulates Dr. Jonas E. Salk, with briefcase, after Dr. Salk arrived at the airport in P…