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Correction to: Frakes E, Risser R, Ball T, Hochberg M, Wohlreich M. Duloxetine Added to Nonsteroidal Anti-inflammatory Drugs for Treatment of Knee Pain Due to Osteoarthritis: Results of a Randomized, Double-blind, Placebo-controlled Trial. Curr Med Res Opin. 2011;27(12):1-12.
Correction to: Frakes E, Risser R, Ball T, Hochberg M, Wohlreich M. Duloxetine Added to Nonsteroidal Anti-inflammatory Drugs for Treatment of Knee Pain Due to Osteoarthritis: Results of a Randomized, Double-blind, Placebo-controlled Trial. .
The authors have been made aware of an omission in Table 3. As described in the text, the table should have shown results of the PGI-Improvement scale.
This error did not affect the text or any of the study results or conclusions.
The authors report the following Table 3 which has been revised to include the PGI-Improvement scores: