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Revicki, D.A., Rentz, A.M., Luo, M.P. et al. Psychometric characteristics of the ankylosing spondylitis quality of life questionnaire, short form 36 health survey, and functional assessment of chronic illness therapy-fatigue subscale. Health Qual Life Outcomes 7, 6 (2009). https://doi.org/10.1186/1477-7525-7-6
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DOI: https://doi.org/10.1186/1477-7525-7-6