1 Department of Respiratory Medicine, Allergology and Sleep Medicine, Paracelsus Medical University Nuremberg, General Hospital Nuremberg, Prof.-Ernst-Nathan-Str. 1, 90419, Nuremberg, Germany. jswol@icloud.com.
2 Department of Respiratory Medicine, Allergology and Sleep Medicine, Paracelsus Medical University Nuremberg, General Hospital Nuremberg, Prof.-Ernst-Nathan-Str. 1, 90419, Nuremberg, Germany.