Phetpavararak, B. and Inprasit, N. 2025. Hepatotoxicity in Elderly Tuberculosis Patient With Low NAT2 Activity Receiving Isoniazid: A Case Report. Research Medical Journal. 48, 4 (Oct. 2025), e274746. DOI:https://doi.org/10.33165/rmj.48.04.e274746.