Ali, M., Saba Zaidi, Kazi, H. I., & Shahab, F. (2026). The impact of air quality index (AQI) and particulate matter 2.5 (PM) concentration on the incidence of stroke in Karachi, Pakistan: a bidirectional cohort study. Journal of the Pakistan Medical Association, 76(02), 226–232. https://doi.org/10.47391/JPMA.21691