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The nature of sleep itself has for the first time been experimentally as well as clinically studied, with results of great practical significance. The causes of sleeplessness have likewise been investigated more carefully than ever before, and discoveries made that bring new hope to the victim of insomnia.

Produktbeschreibung
The nature of sleep itself has for the first time been experimentally as well as clinically studied, with results of great practical significance. The causes of sleeplessness have likewise been investigated more carefully than ever before, and discoveries made that bring new hope to the victim of insomnia.