In the Results section of the article, just before the last paragraph of the section, there was an equation omitted. The full, relevant, section with the equation included is: Using the cumulative probability of retraction (Fig. 5), the corrected number of retractions χ can be calculated as follows: χ = ρ / π Where ρ = Number of articles already retracted by year Y after publication. π = Cumulative probability of retraction by year Y.
Citation: Steen RG, Casadevall A, Fang FC (2013) Correction: Why Has the Number of Scientific Retractions Increased? PLoS ONE 8(7): 10.1371/annotation/0d28db18-e117-4804-b1bc-e2da285103ac. https://doi.org/10.1371/annotation/0d28db18-e117-4804-b1bc-e2da285103ac
Published: July 19, 2013
Copyright: © 2013 . 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.
Competing interests: No competing interests declared.