1. Division of Allergy and Clinical Immunology
2. Division of General Internal Medicine and Primary Care, and
3. Department of Internal Medicine, University Hospital Zurich, and Epidemiology, Biostatistics, and Prevention Institute, University of Zurich, Zurich, Switzerland; and
4. Division of Rheumatology, Immunity, and Inflammation, Department of Medicine, Brigham and Women’s Hospital, and Harvard Medical School, Boston, Massachusetts
5. Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee