Al Sallakh, M., Rodgers, S., Sheikh, A., Lyons, R., & Davies, G. (2017). Effect of incomplete registration at general practices on the annual prevalence of treated asthma: IJPDS (2017) Issue 1, Vol 1:213 Proceedings of the IPDLN Conference (August 2016). International Journal of Population Data Science, 1(1). https://doi.org/10.23889/ijpds.v1i1.233