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Vitamin B3 deficiency
- Pellagra is a disease of deficiency of niacin (vitamin B3) which causes problems in the skin and the digestive and nervous systems.
- Angular Cheilitis (Perleche) (VisualDX)Mouth Disorders/Images ... Mouth Disorders ... VisualDX ... Angular cheilitis, also known as perleche, is an inflammation of the corners of the mouth. Learn about its ...