Authors: Thomas Whitfield; Cristina Fernandez; Kelly Davies; Sylviane Defres; Michael Griffiths; Cory Hooper; Rebecca Tangney; Girvan Burnside; Anna Rosala-Hallas; Perry Moore; Kumar Das; Mark Zuckerman; Laura Parkes; Simon Keller; Neil Roberts; Ava Easton; Saber Touati; Rachel Kneen; J P Stahl; Tom Solomon Journal: BMJ Open Date: 2021-07-22 Impact factor: 2.692