Pellagra in South Carolina: déjà vu.
D003690:Deja Vu; D003704:Dementia / Q000209:etiology; D049673:History, 20th Century; D006801:Humans; D009525:Niacin / Q000172:deficiency; D010383:Pellagra / Q000150:complications / Q000266:history*; D013022:South Carolina
D009525:Niacin