1. Centre for Asthma and Respiratory Diseases; University of Newcastle and Hunter Medical Research Institute; Newcastle; NSW; Australia
2. Pneumology Group; Department of Integrated Traditional Chinese and Western Medicine; West China Hospital; Sichuan University; Chengdu; China
3. Department of Allergy-Immunology; Scripps Clinic; San Diego; CA; USA
4. Pediatrics and Family and Preventative Medicine; University of California; San Diego; CA; USA
5. Department of Allergy; Kaiser Permanente Medical Center; San Diego; CA; USA