Hypersensitivity, Immediate

• Regeneron Study Site — Phoenix, Arizona, United States
• Regeneron Study Site — Scottsdale, Arizona, United States
• Regeneron Study Site — Little Rock, Arkansas, United States
• Regeneron Study Site — La Jolla, California, United States

• Toyohashi Municipal Hospital — Toyohashi, Aichi-ken, Japan
• Asahi General Hospital — Asahi, Chiba, Japan
• Tomakomai City Hospital — Tomakomai, Hokkaido, Japan
• Kobe University Hospital — Kobe, Hyōgo, Japan

• Medizinische Universitat Wien (Medical University of Vienna) — Vienna, Austria
• UZ Antwerpen — Edegem, Belgium
• University Multiprofile Hospital for Active Treatment Aleksandrovska EAD — Sofia, Bulgaria
• Vancouver Allergy Clinic — Vancouver, British Columbia, Canada

• Study center — Birmingham, Alabama, United States
• Study center — Scottsdale, Arizona, United States
• Study center — Little Rock, Arkansas, United States
• Study Center — San Diego, California, United States

• West China Hospital of Sichuan University — Chengdu, Sichuan, China

• Department of Otorhinolaryngology, Head and Neck Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia — Cheras, Kuala Lumpur, Malaysia

• Study Center — Birmingham, Alabama, United States
• Study Center — Scottsdale, Arizona, United States
• Study Center — Bentonville, Arkansas, United States
• Study Center — Little Rock, Arkansas, United States

• MAC Clinical Research — Manchester, United Kingdom

• Outpatient clinic faculty of physical therapy cairo university — Dokki, Egypt

Not specified