Jayes, L. R., Murray, R. L., Opazo Breton, M., Hill, C., Ratschen, E., & Britton, J. (2019). Smoke-free prisons in England: indoor air quality before and after implementation of a comprehensive smoke-free policy. BMJ Open, 9(6), Article e025782. https://doi.org/10.1136/bmjopen-2018-025782