[1] Univ Munich, Inst Med Informat Biometry & Epidemiol, Munich, Germany
[2] Merck KGaA, Darmstadt, Germany
[3] Univ Munich, Dept Internal Med 3, Klinikum Grosshadern, Munich, Germany
[4] Univ Munich, Dept Clin Radiol, Klinikum Grosshadern, Munich, Germany