Authors: Fiona H Duncan; Mike McGrath; Cleo Baskin; David Osborn; Jen Dykxhoorn; Eileen F S Kaner; Shamini Gnani; Louise LaFortune; Caroline Lee; Kate R Walters; James Kirkbride; Laura Fischer; Oli Jones; Vanessa Pinfold; Jude Stansfield; Emily J Oliver Journal: BMJ Open Date: 2020-07-13 Impact factor: 2.692