[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