[1] King Saud University for Health Sciences,Department of Medicine, Pulmonary Division
[2] King Saud bin Abdulaziz University for Health Sciences,ICU
[3] College of Medicine,Department of Epidemiology and Biostatistics, College of Public Health and Health, Informatics
[4] King Saud University,Asthma Research Chair and Prince Naif Center for Immunology Research, Department of Paediatrics
[5] Adjunct professor McGill University,Head of Pulmonary Division, Medical Director of Sleep Disorders Center
[6] King Saud University for Health Sciences,undefined
[7] King Abdulaziz Medical City,undefined
[8] Riyadh,undefined