1 S.E. Sattui, MD, MS, Assistant Professor of Medicine, Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.
2 P.C. Robinson, MB ChB, PhD, Associate Professor, University of Queensland School of Clinical Medicine, Faculty of Medicine, and Royal Brisbane & Women's Hospital, Metro North Hospital & Health Service, Herston, Queensland, Australia. [email protected].