1. Department of Pulmonary Diseases B70; Canisius Wilhelmina Hospital; Nijmegen The Netherlands
2. Vanderbilt-Ingram Cancer Center; Division of Allergy, Pulmonary and Critical Care Medicine; Nashville Tennessee
3. Lung and Pleural Cancers Research and Clinical Center; Eskisehir Osmangazi University; Eskisehir Turkey
4. Medical Faculty Department of Pulmonology; Eskisehir Turkey