title: Steroid hormones and aging: free testosterone, testosterone and androstenedione in normal females aged 20-87 years.
mesh_terms: D000328:Adult; D000368:Aged; D000375:Aging; D000735:Androstenedione / Q000097:blood*; D005260:Female; D006801:Humans; D008593:Menopause; D008875:Middle Aged; D012738:Sex Hormone-Binding Globulin / Q000032:analysis; D013739:Testosterone / Q000097:blood*
chemical_list: D012738:Sex Hormone-Binding Globulin; D013739:Testosterone; D000735:Androstenedione