title: Circadian rhythm of serum testosterone and its relation to sleep: comparison with the variation in serum luteinizing hormone, prolactin, and cortisol in normal men.
mesh_terms: D000328:Adult; D002940:Circadian Rhythm; D013006:Growth Hormone / Q000097:blood; D006801:Humans; D006854:Hydrocortisone / Q000097:blood; D007986:Luteinizing Hormone / Q000097:blood; D008297:Male; D011388:Prolactin / Q000097:blood; D012892:Sleep Deprivation; D012894:Sleep Stages / Q000502:physiology*; D013739:Testosterone / Q000097:blood*
chemical_list: D013739:Testosterone; D011388:Prolactin; D007986:Luteinizing Hormone; D013006:Growth Hormone; D006854:Hydrocortisone