1. Department of Pulmonology, Mutua Terrassa Hospital,
2. Departament de Medicina, Facultat de Medicina, Universitat de Barcelona,
3. Department of Internal Medicine, Mutua Terrassa Hospital,
4. Department of Anesthesiology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire;
5. Biomedical Data Sciences Department, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire; and
6. Hospital Library, Mutua Terrassa Foundation, and
7. Department of Thoracic Surgery, Mutua Terrassa Hospital, Terrassa, Spain;
8. Network of Centers for Biomedical Research in Respiratory Diseases (CIBERES) Lung Cancer Group, Terrassa, Spain