[1] Tech Univ Munich, Dept Med 3, D-80290 Munich, Germany
[2] Univ Wurzburg, Inst Pathol, Wurzburg, Germany
[3] Tech Univ Munich, Inst Clin Chem & Pathobiochem, D-80290 Munich, Germany
[4] Univ Hosp Ulm, Dept Internal Med 3, Ulm, Germany
[5] Univ Tubingen, Inst Pathol, Tubingen, Germany
[6] Tech Univ Munich, Dept Nucl Med, D-80290 Munich, Germany
[7] Tech Univ Munich, Inst Radiol, D-80290 Munich, Germany
[8] Univ Freiburg, Dept Med 1, D-79106 Freiburg, Germany
[9] Univ Kiel, Inst Biochem, Kiel, Germany