1. Balamurugesan et al. Common nutritional deficiency with unusual site of presentation. The Egyptian Journal of Internal Medicine. 2021;33(2):1-5 DOI: https://doi.org/10.1186/s43162-020-00031-y
2. Madhyastha S P, Shetty G v, et al. The classic pellagra dermatitis. BMJ Case Rep. 2020;13(e239741):1-2 DOI:10.1136/bcr-2020239741
3. Ernest S. A Vital Nutrient: Niacin Deficiency and Inflammation in Children. J Nutr Disord Ther. 2023;13(1):229
4. Redzic S, et al. Niacin Deficiency. StatPearls. 2023. https://www.ncbi.nlm.nih.gov/books/NBK557728/
5. Halubiec P, Leonczyk M, et al. Pathophysiology and clinical management of pellagra — a review. Folia Medica Cracovienza. 2021;3(61):125-137 DOI:10.24425/fmc.2021.138956
6. Gasperi V, Sibilano M, et al. Niacin in the Central Nervous System: An Update of Biological Aspects and Clinical Applications. Int J Mol Sci. 2019;20(974):1-26 DOI:10.3390/ijms20040974
7. National Institute of Health. Niacin - Fact Sheet for Health Professionals. NIH Office Dietary Supplements. 2022. https://ods.od.nih.gov/factsheets/Niacin-HealthProfessional/
8. Elango R. Tolerable Upper Intake Level for Individual Amino Acids in Humans: A Narrative Review of Recent. Clinical Studies. Advances in Nutrition. 2023;14:885-894 DOI: https://doi.org/10.1016/j.advnut.2023.04.004
9. Pirinen E, Auranen M, Khan Nahid A, et al. Niacin Cures Systemic NAD+ Deficiency and Improves Muscle Performance in Adult-Onset Mitochondrial Myopathy. Cell Metabolism. 2020;31:1078–1090