Authors: Matilda van den Bosch; Michael Brauer; Rick Burnett; Hugh W Davies; Zoe Davis; Martin Guhn; Ingrid Jarvis; Lorien Nesbitt; Tim Oberlander; Emily Rugel; Hind Sbihi; Jason G Su; Michael Jerrett Journal: BMJ Open Date: 2018-12-14 Impact factor: 2.692