Measuring disease activity and functional status in patients with scleroderma and Raynaud’s phenomenon

Peter A. Merkel, Karen Herlyn, Richard W. Martin, Jennifer J. Anderson, Maureen D. Mayes, Patrice Bell, Joseph H. Korn, Robert W. Simms, Mary Ellen Csuka, Thomas A. Medsger, Naomi F. Rothfield, Michael H. Ellman, David H. Collier, Arthur Weinstein, Daniel E. Furst, Sergio A. Jiménez, Barbara White, James R. Seibold, Fredrick M. Wigley