@inbook{57272580, author={Laura K. Hummers, MD and Fredrick M. Wigley, MD}, editor={Imboden, John B. and Hellmann, David B. and Stone, John H.}, title={Chapter 25. Scleroderma}, booktitle={CURRENT Diagnosis & Treatment: Rheumatology, 3e}, publisher={The McGraw-Hill Companies}, address={New York, NY}, year={2013}, url={accessmedicine.mhmedical.com/content.aspx?aid=57272580} }