pellagra-niacin def.cl ft-

constit sympt.dermal lesion-hyperkerato,bilat,symetrcal,photosens.sunexposd part casal necklace.
Diarhea-mucous memb inflam,glositis,stomat,gastratis.
Dementia-haluc,delerim,sp paraplag.mental depresn.
Trt-nicotinic acid100mg.prevent-replace maiz