NBC Evening News for Monday, Apr 04, 1977
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(Studio) Humans to be used to test new form of Vitamin A to see if it will prevent cancer.
REPORTER: David Brinkley
(Bethesda, Maryland) Animal tests with regard to new drug noted. Drug now being produced at Hoffman-La Roche, Incorporated, pharmaceutical company in New Jersey, and will be given in clinics to heavy smokers and chemical workers. [National Cancer Institute representative Dr. Michael SPORN - says data encouraging, but won't give impression there's prevention for cancer.] Details of scientists' cautions with regard to drug noted.
REPORTER: Robert Bazell
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