Author
Elizabeth A Liotta, MD Chief Dermatologist and Sole Proprietor, Integrated Skin Care Centers
Elizabeth A Liotta, MD is a member of the following medical societies: American Academy of Dermatology
Disclosure: Nothing to disclose.
Coauthor(s)
Dirk M Elston, MD Professor and Chairman, Department of Dermatology and Dermatologic Surgery, Medical University of South Carolina College of Medicine
Dirk M Elston, MD is a member of the following medical societies: American Academy of Dermatology
Disclosure: Nothing to disclose.
Alexander Brough, MD Consulting Surgeon, Department of Dermatology, Sewell's Point Clinic
Alexander Brough, MD is a member of the following medical societies: American Medical Association
Disclosure: Nothing to disclose.
Specialty Editor Board
Michael J Wells, MD, FAAD Dermatologic/Mohs Surgeon, The Surgery Center at Plano Dermatology
Michael J Wells, MD, FAAD is a member of the following medical societies: Alpha Omega Alpha, American Academy of Dermatology, American Medical Association, Texas Medical Association
Disclosure: Nothing to disclose.
Jeffrey P Callen, MD Professor of Medicine (Dermatology), Chief, Division of Dermatology, University of Louisville School of Medicine
Jeffrey P Callen, MD is a member of the following medical societies: Alpha Omega Alpha, American Academy of Dermatology, American College of Physicians, American College of Rheumatology
Disclosure: Received income in an amount equal to or greater than $250 from: Genentech as a consultant for a potential study on a drug that has yet to be approved for any use<br/>Received honoraria from UpToDate for author/editor; Received royalty from Elsevier for book author/editor; Received dividends from trust accounts, but I do not control these accounts, and have directed our managers to divest pharmaceutical stocks as is fiscally prudent from Stock holdings in various trust accounts include some pharmaceutical companies and device makers for these trust accounts; I served on a safety monitoring committee for Principia Biopharma (ended 9-2021) for: Stocks held in various trust accounts: Allergen; Pfizer; 3M; Johnson and Johnson; Merck; Abbott Laboratories; AbbVie; Procter and Gamble; Amgen; Gilead.
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
Robin Travers, MD Assistant Professor of Medicine (Dermatology), Dartmouth University School of Medicine; Staff Dermatologist, New England Baptist Hospital; Private Practice, SkinCare Physicians
Robin Travers, MD is a member of the following medical societies: American Academy of Dermatology, American Medical Informatics Association, Massachusetts Medical Society, Women's Dermatologic Society, Medical Dermatology Society
Disclosure: Nothing to disclose.
Acknowledgements
The authors and editors of Medscape Reference gratefully acknowledge the contributions of previous author, Dr. Quenby Erickson, to the development and writing of this article.