1. Arkansas College of Osteopathic Medicine Clinical Faculty, Fort Smith, Arkansas
2. Asthma and Allergy Center, Lewisville and Flower Mound, Denton County
3. Division of Allergy and Immunology, University of Texas Southwestern Medical Center, Dallas, Texas
4. Department of Allergy and Immunology, Washington DC Veterans Affairs Medical Center, George Washington University, Washington, District of Columbia
5. Uniformed Services University of the Health Sciences, Bethesda, Maryland
6. Eye Consultants of Texas Ocular Surface Center of Excellence, University of Texas at Arlington Advisory Board, Arlington, Texas, USA