Publication Type: Journal Article Authors: Zghebi, S. S.; Rutter, M. K.; Ashcroft, D. M.; Salisbury, C.; Mallen, C.; Chew-Graham, C. A.; Reeves, D.; van Marwijk, H.; Qureshi, N.; Weng, S.; Peek, N.; Planner, C.; Nowakowska, M.; Mamas, M.; Kontopantelis, E. Source: BMJ Open, Volume 8, Number 6, p.e020926 (2018)