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18 March, 17:22

What new scientific discoveries came about in the 1920's and 1930's

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  1. 18 March, 19:27
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    Ok I think the answer is
  2. 18 March, 20:00
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    Vitamins C and E, penicillin - the first of the modern antibiotics, innovations in immunization, and the discovery of insulin which made the treatment of diabetes possible.
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