1 Lung Cancer Network NOWEL, Oldenburg, Germany; Hematopathology, Central NOWEL Laboratory, Hamburg, Germany; NEO New Oncology GmbH, Cologne, Germany.
2 Lung Cancer Network NOWEL, Oldenburg, Germany; Pius Hospital, Medical Campus, University of Oldenburg, Oldenburg, Germany. Electronic address: Frank.griesinger@pius-hospital.de.