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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

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The original article was published in Journal of Patient-Reported Outcomes 2019 3:5

Retraction Note to: J Patient Rep Outcomes

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.


  1. 1.

    Cella et al. (2019) Journal of Patient-Reported Outcomes 3, 5. doi:

  2. 2.

    Cella et al. (2019) Journal of Patient-Reported Outcomes 3, 30. doi:

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Correspondence to David Cella.

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