This is the source code for the study:
Alsallakh MA, Rodgers SE, Lyons RA, Sheikh A, Davies GA (2021) Association of socioeconomic deprivation with asthma care, outcomes, and deaths in Wales: A 5-year national linked primary and secondary care cohort study. PLoS Med 18(2): e1003497. https://doi.org/10.1371/journal.pmed.1003497