1. Division of Pulmonary/Critical care/Sleep Medicine; University of Florida College of Medicine; Gainesville Florida
2. Cytopathology Unit, Department of Pathology, Immunology and Laboratory Medicine; University of Florida College of Medicine; Gainesville Florida
3. Interventional Pulmonology; Clinica Alemana-Universidad del Desarrollo; Santiago Chile
4. Department of Pathology; University of Utah and ARUP Laboratories; Salt Lake City Utah