Lancet
Little P, Francis NA, Stuart B, O'Reilly G, Thompson N, Becque T, Hay AD, Wang K, Sharland M, Harnden A, Yao G, Raftery J, Zhu S, Little J, Hookham C, Rowley K, Euden J, Harman K, Coenen S, Read RC, Woods C, Butler CC, Faust SN, Leydon G, Wan M, Hood K, Whitehurst J, Richards-Hall S, Smith P, Thomas M, Moore M, Verheij T
doi: 10.1016/S0140-6736(21)01431-8