Allen, D., Lloyd, A., Edwards, D., Hood, K., Huang, C., Hughes, J., Jacob, N., Lacy, D., Moriarty, Y., Oliver, A., Preston, J., Sefton, G., Sinha, I., Skone, R., Strange, H., Taiyari, K., Thomas-Jones, E., Trubey, R., Tume, L., Powell, C., & Roland, D. (2022). Development, implementation and evaluation of an evidence-based paediatric early warning system improvement programme: the PUMA mixed methods study. BMC Health Services Research, 22(1), Article 9. https://doi.org/10.1186/s12913-021-07314-2