Pellagra: A Health Crisis Sparked by Niacin Deficiency. International Journal of Pharmaceutical Drug Design, [S. l.], v. 2, n. 2, p. 55–62, 2025. DOI: 10.62896/. Disponível em: https://ijpdd.org/index.php/files/article/view/221. Acesso em: 5 apr. 2026.