British Thoracic Society
American Thoracic Society
European Respiratory Society
World Allergy Organization
American Academy of Allergy, Asthma & Immunology (AAAAI)
Medscape- Pulmonary Medicine
Medscape- allergy & Clinical Immunology
National Heart, Lung,and Blood Institute (NHLBI)
American College of Chest Physicians (ACCP)+6598
British Medical Journal
The Journal of Allergy and Clinical Immunology
American Journal of Respiratory and Critical Care Medicine
