1. Department of Pathology and Laboratory Medicine University of California San Diego La Jolla California USA
2. Department of Pulmonary Medicine University of California San Diego La Jolla California USA
3. Section of Pulmonary Diseases, Critical Care and Environmental Medicine Tulane University School of Medicine New Orleans Louisiana USA
4. Department of Radiology University of California San Diego La Jolla California USA
5. Department of Surgery University of California San Diego La Jolla California USA
6. Department of Pathology and Laboratory Medicine Mayo Clinic Rochester Minnesota USA