1. Allergy and Immunology Clinic; Pulmonary Institute; Rabin Medical Center; Petach Tikva, affiliated with Sackler Faculty of Medicine; Tel Aviv University; Tel Aviv Israel
2. Israel Center for Disease Control; Ministry of Health; Ramat Gan Israel
3. Department of Epidemiology and Preventive Medicine, Sackler Faculty of Medicine; Tel Aviv University; Tel Aviv Israel
4. Medical Corps, Israel Defense Forces, Tel Hashomer; Israel
5. Shamir Research Institute, University of Haifa; Kazerin Israel
6. Shaare Zedek Medical Center; Jerusalem Israel