Chemello, D., Fagundes, C., Chagas, P., de Barros, L. and Cardoso, P. 2026. Multifocal Atrial Tachycardia in a 9-Month-Old Infant: A Case Report with Therapeutic Insights. Indonesian Journal of Cardiology. (Jun. 2026). DOI:https://doi.org/10.30701/ijc.1889.