Lesions on the arms of a patient due to pellagra, a condition caused by vitamin B3 deficiency. Cracked and inflamed skin is one symptom of this condition. Vitamin B3 exists in two forms: niacinamide and niacin. One of the complex of B vitamins, it takes part in many metabolic reactions and, like other vitamins, is needed only in small amounts, but is an essential part of a healthy diet.

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TOP29245002

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達志影像

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