Lyons, J., Johnson, R., Edwards , M., Turner, S., Fry, R., Griffiths, L. J., & Lyons, R. (2025). Administrative data linkage to Census 2021 in Wales, UK: A cross-sectional study examining completeness and representativeness for population analytics. International Journal of Population Data Science, 10(1). https://doi.org/10.23889/ijpds.v10i1.2994