3 ms·
(For those unfamiliar: https://en.wikipedia.org/wiki/Ignaz_Semmelweis https://en.wikipedia.org/wiki/Ignaz_Semmelweis )
by perihelions 4y ago
(For those unfamiliar:
https://en.wikipedia.org/wiki/Ignaz_Semmelweis https://en.wikipedia.org/wiki/Ignaz_Semmelweis
)