Carthy, P., A. Ó Domhnaill, M. O’Mahony, A. Nolan, F. Moriarty, B. Broderick, M. Hennessy, A. Donnelly, O. Naughton and S. Lyons (2020). Local NO2 concentrations and asthma among over-50s in Ireland: A microdata analysis, International Journal of Epidemiology, Vol 49, Issue 6, December 2020, pp. 1899–1908, https://doi.org/10.1093/ije/dyaa074