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21 Jun 1925 Jahr - Nathanial Klietman 2

Beschreibung:

Opened world's first sleep lab in the University of Chicago, used electrical recording instruments and chartered effects upon sleepers of alcohol and drugs.

Zugefügt zum Band der Zeit:

History of Sleep study

ByK
9 Okt 2018

Datum:

21 Jun 1925 Jahr
Jetzt
~ 99 years ago
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