Ali-Sak, Zafer Hasan, et al. “The Relationship Between Particulate Matter and Childhood Respiratory Complaints and Peak Expiratory Flows in Harran Agricultural Area”. The Turkish Journal of Pediatrics, vol. 63, no. 2, Apr. 2021, pp. 263-72, https://doi.org/10.24953/turkjped.2021.02.010.