1 UPMC Susquehanna Health Allergy, Williamsport, Pa.
2 Asthma and Allergy Wellness Center, Saint Charles, Ill.
3 Kaneland Allergy & Asthma Center, North Aurora, Ill; Advocate Sherman Hospital, Elgin, Ill.
4 Shannon Clinic/Shannon Medical Center, San Angelo, Tex.
5 University of Arkansas for Medical Sciences, Little Rock, Ark.
6 Partner ProHealth Care, LLP (Optum).
7 Ohio ENT and Allergy Physicians, Columbus, Ohio; Nationwide Children's Hospital, Columbus, Ohio.
8 University of Wisconsin School of Medicine and Public Health and William S. Middleton Veterans Memorial Hospital, Madison, Wisc.
9 Uptown Allergy & Asthma, New Orleans, La.
10 Division of Allergy Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass.
11 The Allergy & Asthma Clinic of Southern, New Mexico, NM.
12 Medicine Emory University, Atlanta, Ga.
13 Division of Pulmonary, Allergy and Critical Care, Department of Medicine, NorthShore University HealthSystem, Evanston, Ill. Electronic address: Gmosnaim@northshore.org.