There is an error in affiliation 1 for the author Karen Palmer. Affiliation 1 should be: Faculty of Health Sciences and Faculty of Science Simon Fraser University, Burnaby, British Columbia, Canada. The publisher apologizes for this error.
Authors: Karen S Palmer; Thomas Agoritsas; Danielle Martin; Taryn Scott; Sohail M Mulla; Ashley P Miller; Arnav Agarwal; Andrew Bresnahan; Afeez Abiola Hazzan; Rebecca A Jeffery; Arnaud Merglen; Ahmed Negm; Reed A Siemieniuk; Neera Bhatnagar; Irfan A Dhalla; John N Lavis; John J You; Stephen J Duckett; Gordon H Guyatt Journal: PLoS One Date: 2014-10-27 Impact factor: 3.752