Fig. 1From: Establishment of the upper reference limit for thyroid peroxidase autoantibodies according to the guidelines proposed by the National Academy of Clinical Biochemistry: comparison of five different automated methodsValues of thyroid peroxidase autoantibodies, in males and females, measured by the five automated methods. a Immulite 2000 XPi, b Maglumi 2000 Plus, c Kryptor Compact Plus, d Phadia 250, e Liaison XL. M males, F femalesBack to article page