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Journal of Clinical Endocrinology & Metabolism, Vol 42, 979-982, Copyright © 1976 by Endocrine Society
ARTICLES |
AG Smals, PW Kloppenborg and TJ Benraad
In a groups of 15 healthy male subjects a statistically significant circannual cycle in plasma testosterone levels was assessed by sampling blood at 3-monthly intervals. Peak levels were found in summer and early autumn and a nadir in the winter and early spring.
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