1. Research and Development, Inova Diagnostics, San Diego, CA, USA
2. Allergy, Clinical Immunology and Rheumatology Unit, Immunorheumatology Research Laboratory, IRCCS Istituto Auxologico Italiano, Milan, Italy
3. Immunology and Allergology Laboratory Unit, Rheumatology Unit, S. Giovanni Di Dio Hospital, Florence, Italy
4. Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada