In this paper which appeared in Pain Research and Treatment (Volume 2012, Article ID 426130) the affiliations have been switched. The affiliations should appear as shown above.

Moreover in Table 3 on page 10 the NNTs of Milnacipran and of Duloxetine have been switched. The NNTs should appear as follows: Milnacipran NNT 19 (95% CI 7.4, 20.5) and Duloxetine NNT 7.2 (95% CI 5.2, 11.4). The corrected full Table 3 is shown later.