1. Facultad de Medicina, Universidad San Sebastian; Concepcion, Chile
2. Medicina Interna, Complejo Asistencial Dr. Victor Rios Ruiz; Los Angeles, Chile
3. Evidence Based Medicine in Pulmonology (EBMIP) Working Group; Concepcion, Chile
4. Medicina Interna, Pontificia Universidad Catolica de Chile; Santiago, Chile
5. Centro de Enfermedades respiratorias, Clinca Las Condes; Santiago, Chile
6. Medical Student, A.T. Still University Kirksville College of Osteopathic Medicine; Kirksville MO