Smals et al. (40) studied 15 healthy men in the United States (mean age 33.5 ± 5.9 years) and found bi-annual peaks for testosterone in summer and autumn.

Authors

• Person: Not available Organization: Frontiers
  Seasonal Changes of Serum Gonadotropins and Testosterone in ...

Sources

• Seasonal Changes of Serum Gonadotropins and Testosterone in ... www.frontiersin.org Frontiers via serper

Referenced by nodes (2)

• testosterone concept
• U.S. location