Authors: Alicia Calderone; Wendy Stevens; David Prior; Harshal Nandurkar; Eli Gabbay; Susanna M Proudman; Trevor Williams; David Celermajer; Joanne Sahhar; Peter K K Wong; Vivek Thakkar; Nathan Dwyer; Jeremy Wrobel; Weng Chin; Danny Liew; Margaret Staples; Rachelle Buchbinder; Mandana Nikpour Journal: BMJ Open Date: 2016-12-08 Impact factor: 2.692