RT Journal Article SR Electronic T1 Androgen assessment in hirsutism and alopecia JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 292 OP 297 VO 57 IS 3 A1 Gupta, Manjula K. YR 1990 UL http://www.ccjm.org/content/57/3/292.abstract AB Advances in technology, such as saturation analysis and nonisotopic immunoassays, have improved the measurement of androgens, binding proteins, and hormone receptors, and clarified the diagnosis of idiopathic hirsutism. Immunoassay methods in steroid biochemistry enable accurate measurement of low concentrations of various androgens and their metabolites; and high-specificity antisera with chemical blocking agents allow measurement of these steroids directly in plasma without resorting to extraction methods. The future may bring the capacity to measure free concentrations.