What do guinea pigs, eugenics and Japanese incarceration during WWII have in common? They all play a role in the story of the Pap smear.

Find out how a Greek immigrant doctor—Dr. Pap—and his lab manager wife pioneered a life-saving test in our latest installment of WHAT THE HISTORY?!.

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This episode of WHAT THE HISTORY?! is inspired by the new AMERICAN EXPERIENCE film THE CANCER DETECTIVES, premiering Tuesday, March 26th on PBS, YouTube and the free PBS App.

Official Website: https://www.pbs.org/wgbh/americanexpe...

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