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Retraction Note to: Content validity and psychometric evaluation of functional assessment of chronic illness therapy-fatigue in patients with psoriatic arthritis

The Original Article was published on 24 January 2019

Retraction Note to: J Patient Rep Outcomes

https://doi.org/10.1186/s41687-019-0094-5

The publisher has retracted this article [1] because the incorrect version of the article was published in error. The manuscript has been republished as [2]. Springer Nature apologises to readers.

All authors agree to this retraction.

References

  1. Cella et al. (2019) Journal of Patient-Reported Outcomes 3, 5. doi: https://doi.org/10.1186/s41687-019-0094-5.

  2. Cella et al. (2019) Journal of Patient-Reported Outcomes 3, 30. doi: https://doi.org/10.1186/s41687-019-0115-4.

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Correspondence to David Cella.

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Cella, D., Wilson, H., Shalhoub, H. et al. Retraction Note to: Content validity and psychometric evaluation of functional assessment of chronic illness therapy-fatigue in patients with psoriatic arthritis. J Patient Rep Outcomes 3, 32 (2019). https://doi.org/10.1186/s41687-019-0125-2

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  • DOI: https://doi.org/10.1186/s41687-019-0125-2