Authors: Mari Imamura; Jemma Hudson; Sheila A Wallace; Graeme MacLennan; Michal Shimonovich; Muhammad Imran Omar; Mehdi Javanbakht; Eoin Moloney; Frauke Becker; Laura Ternent; Isobel Montgomery; Phil Mackie; Lucky Saraswat; Ash Monga; Luke Vale; Dawn Craig; Miriam Brazzelli Journal: BMJ Date: 2019-06-05