Serum TSH, T4 and thyroid antibodies in the United States population (1988-1994): National Health and Nutrition Examination Survey (NHANES III). - Hollowell,JG.; Staehling,NW.; Flanders,WD.; Hannon,WH.; Gunter,EW.; Spencer,CA.; Braverman,LE. (J Clin Endocrinol Metab, 2002)