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1970s: Optometrist checks boy's eyes in medical office. Title placard.
1940s: Newspapers with articles warning about Dengue and Yellow Fever are printed, in Tampa, Florida, in 1945.
1940s: Newspapers with articles warning about Dengue and Yellow Fever are printed, in Tampa, Florida, in 1945.
CIRCA 1950s - With further outreach programs, more syphilitic patients were found and cured in the late 1940s.
1930s: Tooth root end cultures are incubated and germs are observed, in 1935.
1980s: UNITED STATES: The Film Library, Department of Human Resources Presents title. Lady walks along street on sunny day.
1930s: Title card. Photograph of golf green with text overlay. Text card.

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1024750139
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ID Video có sẵn: 1024750139

1930s: Title card: Science of Life. Title card: How the Mosquito Spreads Disease.

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