Authors: Christina Korownyk; Michael R Kolber; James McCormack; Vanessa Lam; Kate Overbo; Candra Cotton; Caitlin Finley; Ricky D Turgeon; Scott Garrison; Adrienne J Lindblad; Hoan Linh Banh; Denise Campbell-Scherer; Ben Vandermeer; G Michael Allan Journal: BMJ Date: 2014-12-17