Peter Andreas, Shipkova Maria, Wieland Eberhard, Schleicher Erwin, Müller Ingo
Department of Internal Medicine, Division of Endocrinology, Metabolism, Pathobiochemistry and Clinical Chemistry, University of Tübingen, Tübingen, Germany.
Clin Chem. 2011 May;57(5):670-3. doi: 10.1373/clinchem.2010.148718.