1. Department of Internal Medicine; University of South Florida; Tampa FL USA
2. IPS Research Company; Oklahoma City OK USA
3. Medical Department; Institut fuer Gesundheitsfoerderung; Ruedersdorf Brandenburg Germany
4. Department of Pneumology; University of Marburg; Marburg Germany
5. Cytos Biotechnology AG; Schlieren Switzerland
6. Department of Medicine; National Jewish Health; Denver CO USA