[1] Univ Hosp Cologne, Inst Pathol, Cologne, Germany
[2] Univ Cologne, Fac Med, Inst Med Stat & Computat Biol, Cologne, Germany
[3] Network Genom Med, Cologne, Germany
[4] Univ Hosp Cologne, Dept Internal Med 1, Lung Canc Grp Cologne, Cologne, Germany
[5] Ctr Integrated Oncol Cologne Bonn, Cologne, Germany