[1
]
Hospital Universitario de Getafe and CIBER Enfermedades Respiratorias, Madrid, Spain.
[2
]
Hospital Universitario de Getafe and CIBER Enfermedades Respiratorias, Madrid, Spain.
Electronic address: aesteban@ucigetafe.com.
[3
]
Hospital Profesor A.Posadas, Buenos Aires, Argentina.
[4
]
Clinica Medellín and Universidad Pontificia Bolivariana, Medellín, Colombia.
[5
]
King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.
[6
]
South Texas Veterans Health Care System Audie L. Murphy Division and University of
Texas Health Science Center, San Antonio, TX.
[7
]
Hospital del Henares, Madrid, Spain.
[8
]
Hospital de Clínicas de Montevideo, Uruguay.
[9
]
King Abdulaziz University, Jeddah, Saudi Arabia.
[10
]
Hospital de Clínicas de Caracas, Venezuela.