Hypersensitivity

• Hospital Infantil La Fe — Valencia, Spain
• University Hospital Geneva — Geneva, Canton of Geneva, Switzerland
• St. Peter's Hospital — Chertsey, Surrey, United Kingdom
• St. Thomas' Hospital — London, United Kingdom

• Washington University St Louis School of Medicine — St Louis, Missouri, United States

• CHR Metz-Thionville — Metz, Moselle, France

• Department of Thoracic and Occupational Medicine — Trondheim, Trøndelag, Norway

• Centre Hospitalier de l'Université de Montréal — Montreal, Quebec, Canada

• Academic medical center — Amsterdam, Netherlands

Not specified

• Silverstone Research Group — Las Vegas, Nevada, United States

• Peking University Third Hospital — Beijing, Beijing Municipality, China
• Children's Hospital of Chongqing Medical University — Chongqing, Chongqing Municipality, China
• Children's Hospital of Fuzhou in Fujian province — Fuzhou, Fujian, China
• The Second Affiliated Hospital of Harbin Medical University — Harbin, Heilongjiang, China

• John Hopkins Asthma and Allergy Center — Baltimore, Maryland, United States