Information regarding a possible competing interest of the sixth author is incorrectly omitted from the Competing interests statement. The Competing interests statement should read: "James A. Colbert was an editorial fellow at the New England Journal of Medicine. Navindra Persaud is an Associate Editor for the Canadian Medical Association Journal. Peter Gill is a member of the Editorial Advisory Board of the CMAJ. All other authors have declared that no competing interest exists. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials."
Citation: The PLOS ONE Staff (2014) Correction: Differences in the Volume of Pharmaceutical Advertisements between Print General Medical Journals. PLoS ONE 9(2): e91628. doi:10.1371/journal.pone.0091628
Published: February 28, 2014
Copyright: © 2014 The PLOS ONE Staff. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.