Please refer to this study by its ClinicalTrials.gov identifier: NCT00094016
| Southern California Research |
| Mission Viejo, California, United States, 92691 |
| Allergy and Asthma Medical Group |
| Walnut Creek, California, United States, 94598 |
| Clinical Trials of Orange County, Inc. |
| Orange, California, United States, 92868 |
| Integrated Research Group |
| Riverside, California, United States, 92506 |
| Center for Clinical Trials, LLC |
| Paramount, California, United States, 90723 |
| California Allergy & Asthma |
| Palmdale, California, United States, 93551 |
| Allergy and Asthma Specialists |
| Huntington Beach, California, United States, 92647 |
| West Coast Clinical Trials |
| Long Beach, California, United States, 90806 |
| Allergy Associates Medical Group |
| San Diego, California, United States, 92120 |
| Pediatric Care Medical Group |
| Huntington Beach, California, United States, 92647 |
| Allergy & Asthma Care of Florida |
| Ocala, Florida, United States, 34471 |
| New Horizon's Health Research |
| Atlanta, Georgia, United States, 30309 |
| AeroAllergy Research Labs of Savanna, Inc |
| Savannah, Georgia, United States, 31406 |
| Sneeze, Wheeze and Itch Associates |
| Normal, Illinois, United States, 61761 |
| Family Allergy & Asthma Research Institute |
| Lousiville, Kentucky, United States, 40215 |
| Perez-Betancourt Medical Clinic |
| Metairie, Louisiana, United States, 70001 |
| NorthEast Medical Research Associates |
| North Dartmouth, Massachusetts, United States, 02747 |
| Clinical Research Institute |
| Plymouth, Minnesota, United States, 55441 |
| The Asthma and Allergy Center |
| Papillion, Nebraska, United States, 68046-4194 |
| Asthma and Allergy Associates, PC |
| Ithaca, New York, United States, 14850 |
| St.Elizabeth's Children's Health Center |
| Utica, New York, United States, 13502 |
| Regional Allergy and Asthma Consultants |
| Asheville, North Carolina, United States, 28805 |
| Allergy & Respiratory Center |
| Canton, Ohio, United States, 44718 |
| Dayton Clinical Research Center |
| Dayton, Ohio, United States, 45406 |
| Dr. Santiago Reyes |
| Oklahoma City, Oklahoma, United States, 73112 |
| Allergy and Asthma Clinical Research Center |
| Oklahoma City, Oklahoma, United States, 73120 |
| Allergy, Asthma & Dermatology Research Center |
| Lake Oswego, Oregon, United States, 97035 |
| Allergy and Asthma Research Groups |
| Eugene, Oregon, United States, 97401 |
| Allergy Associates Research Center |
| Portland, Oregon, United States, 97213 |
| Clinical Research Institute of Southern Oregon, PC |
| Medford, Oregon, United States, 97504 |
| Allergy & Clinical Immunology Associates |
| Pittsburg, Pennsylvania, United States, 15241 |
| The Allergy Asthma and Sinus Center |
| Knoxville, Tennessee, United States, 37922 |
| Pharmaceutical Research and Consulting, Inc. |
| Dallas, Texas, United States, 75231 |
| Allergy and Asthma Associates |
| Houston, Texas, United States, 77054 |
| Pediatric Allergy/Immunology Assoc. |
| Dallas, Texas, United States, 75230 |
| Virginia Adult & Pediatric Allergy & Asthma |
| Richmond, Virginia, United States, 23229 |
| Spokane Allergy and Asthma Clinical Research |
| Spokane, Washington, United States, 99204 |
| Ponce School of Medicine |
| Ponce, Puerto Rico, 00732 |
| Centro Neumologia Pediatrica |
| Hato Rey, Puerto Rico, 00917 |