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