Clift, A., Coupland, C., Keogh, R., Diaz-Ordaz, K., Williamson, E., Harrison, E., Hayward, A., Hemingway, H., Horby, P., Mehta, N., Benger, J., Khunti, K., Spiegelhalter, D., Sheikh, A., Valabhji, J., Lyons, R., Robson, J., Semple, M., Kee, F., Johnson, P., Jebb, S., Williams, T. & Hippisley-Cox, J. 2020, 'Living risk prediction algorithm (QCOVID) for risk of hospital admission and mortality from coronavirus 19 in adults:national derivation and validation cohort study', BMJ, 371, article no: m3731. http://dx.doi.org/10.1136/bmj.m3731