这个词是什么意思？
A disease due to deficiency of NIACIN, a B-complex vitamin, or its precursor TRYPTOPHAN. It is characterized by scaly DERMATITIS which is often associated with DIARRHEA and DEMENTIA (the three D's).
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D010383 · MeSH 2026。
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