1. Department of Internal Medicine, New York-Presbyterian Hospital/Weill Cornell Medical Center, New York, New York
2. Department of Internal Medicine, George Washington University School of Medicine and Health Sciences, Washington, DC
3. Department of Internal Medicine, Santa Croce e Carle Hospital, Cuneo, Italy
4. Lung and Vascular Inflammation Section, Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases/National Institutes of Health, Bethesda, Maryland
5. Transfusion Medicine Faenza-Lugo, Transfusion Service Ravenna, Romagna Health Unit, Ravenna, Italy