Air Pollution and Respiratory Health: A Longitudinal Study of Urban Populations in High-Density Cities: Lucía Martín¹, Peter Walsh², Carla Mendes³, Javier Torres⁴, Anna Nelson⁵. Int J Hyg Environ Health. 2025;4(5). Accessed April 20, 2026. https://www.wos-emr.net/index.php/IJHEH/article/view/71