Fig. 6From: Qualitative concept elicitation and cognitive debriefing interviews of symptoms, impacts and selected customized PROMIS® Short Forms: a study in patients with axial spondyloarthritisConceptual relevance of the customized PROMIS® Short Forms. A PROMIS® Fatigue. B PROMIS® Sleep Disturbance. C PROMIS® Pain Interference. PROMIS® Patient-Reported Outcomes Measurement Information SystemBack to article page