[1] University of Michigan,University of Michigan Scleroderma Program, Division of Rheumatology, Department of Internal Medicine
[2] University of Toledo,Division of Rheumatology
[3] David Geffen School of Medicine at UCLA,Department of Biostatistics
[4] David Geffen School of Medicine at UCLA,Department of Radiology
[5] Royal Brompton Hospital,Division of Pulmonary and Critical Care
[6] David Geffen School of Medicine at UCLA,Department of Medicine