1. University of Utah Salt Lake City Utah USA
2. The University of Chicago Medicine Chicago Illinois USA
3. Lake Mary ENT and Allergy Lake Mary Florida USA
4. Wake Forest Baptist Health Winston Salem North Carolina USA
5. Allergy & Asthma Network Fairfax Virginia USA
6. University of Pennsylvania, Otolaryngology–Head and Neck Surgery Philadelphia Pennsylvania USA
7. American Academy of Otolaryngology–Head and Neck Surgery Foundation Alexandria Virginia USA