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A comment on In 1850, Ignaz Semmelweis saved lives with three words: wash your hands (2015).

Re:In 1850, Ignaz Semmelweis saved lives with three words: w... by dukeofdoom on Friday June 18, 2021 @08:52PM (#27556781)
The power of testing an idea, and finding out if it worked.

https://en.wikipedia.org/wiki/Empirical_evidence

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