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American Academy of Dermatology.
American Melanoma Foundation.
British Columbia Health Guide.
Cary M. Golub, DPM, podiatrist, Long Beach, NY.
Environmental Protection Agency.
Harvard Health Report.
Mitchell Goldman, MD, medical director, La Jolla Spa MD, La Jolla, CA.
National Psoriasis Foundation.
University of Iowa Hospitals & Clinics.
Reviewed by Arefa Cassoobhoy, MD, MPH on January 18, 2018
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