Author
Stefanos F Haddad, MD Fellow in Hand and Upper Extremity Surgery, Rothman Institute
Stefanos F Haddad, MD is a member of the following medical societies: American Academy of Orthopaedic Surgeons, American Society for Surgery of the Hand, New York State Society of Orthopaedic Surgeons
Disclosure: Nothing to disclose.
Coauthor(s)
Thomas N Helm, MD Professor of Dermatology, Hershey Medical Center, Penn State Health, Pennsylvania State University College of Medicine
Thomas N Helm, MD is a member of the following medical societies: Alpha Omega Alpha, American Academy of Dermatology, American Society for Dermatologic Surgery, American Society of Dermatopathology
Disclosure: Nothing to disclose.
Specialty Editor Board
David F Butler, MD Former Section Chief of Dermatology, Central Texas Veterans Healthcare System; Professor of Dermatology, Texas A&M University College of Medicine; Founding Chair, Department of Dermatology, Scott and White Clinic
David F Butler, MD is a member of the following medical societies: Alpha Omega Alpha, American Academy of Dermatology, Association of Military Dermatologists, Phi Beta Kappa, Texas Dermatological Society
Disclosure: Nothing to disclose.
Chief Editor
William D James, MD Paul R Gross Professor of Dermatology, Vice-Chairman, Residency Program Director, Department of Dermatology, University of Pennsylvania School of Medicine
William D James, MD is a member of the following medical societies: American Academy of Dermatology, Society for Investigative Dermatology
Disclosure: Received income in an amount equal to or greater than $250 from: Elsevier; WebMD<br/>Served as a speaker for various universities, dermatology societies, and dermatology departments.
Additional Contributors
Richard K Scher, MD Adjunct Professor of Dermatology, University of North Carolina at Chapel Hill School of Medicine; Professor Emeritus of Dermatology, Columbia University College of Physicians and Surgeons
Richard K Scher, MD is a member of the following medical societies: Alpha Omega Alpha, American Academy of Dermatology, American College of Physicians, American Medical Association, The Society of Federal Health Professionals (AMSUS), International Society for Dermatologic Surgery, Noah Worcester Dermatological Society, Society for Investigative Dermatology
Disclosure: Nothing to disclose.
Gregory J Raugi, MD, PhD Professor, Department of Internal Medicine, Division of Dermatology, University of Washington at Seattle School of Medicine; Chief, Dermatology Section, Primary and Specialty Care Service, Veterans Administration Medical Center of Seattle
Gregory J Raugi, MD, PhD is a member of the following medical societies: American Academy of Dermatology
Disclosure: Nothing to disclose.
Acknowledgements
The authors and editors of Medscape Reference gratefully acknowledge the contributions of previous author, Kristin Erickson, MD, to the development and writing of this article.
