Peng, M. et al. 2017. Under-coding of secondary conditions in coded hospital health data: impact of co-existing conditions, death status and number of codes in a record: IJPDS (2017) Issue 1, Vol 1:038, Proceedings of the IPDLN Conference (August 2016). International Journal of Population Data Science. 1, 1 (Apr. 2017). DOI:https://doi.org/10.23889/ijpds.v1i1.55.