Universitätsklinik Bonn, Dermatology, Bonn, Germany
Terveystalo Turku, Turku, Finland
Cetero Research, Mississauga, Ontario, Canada
Allergists' practice Dr. Kirsten Jung, Erfurt, Thueringen, Germany
Center for Rhinology and Allergology, Wiesbaden, Germany
ALK-Abello A/S, Bøge alle 6-8, Hørsholm, Denmark