A J Birkeland

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During night (11 p.m.-7a.m.) blood was sampled in darkness via an indwelling intravenous catheter simultaneously with polygraphic sleep registration in 7 normal men. The nocturnal melatonin secretion patterns exhibited secretory episodes. Spontaneous waking episodes were shown to be significantly correlated to the occurrence of melatonin peaks (chi c2 =(More)
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