The study on seasonal changes of serum gonadotropins and testosterone in males had several limitations: patients were evaluated only once, testosterone levels were measured using commercial kits rather than the gold-standard liquid-chromatography tandem mass-spectrometry (LC-MS/MS), there was no data on liver function to assess sex hormone binding globulin (SHBG) changes, and semen analyses were only available for a small subgroup of patients.

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  Seasonal Changes of Serum Gonadotropins and Testosterone in ...

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Referenced by nodes (1)

• testosterone concept