Physical function and pain interference demonstrate poor longitudinal association in people living with chronic pain: A PROMIS investigation.

Karayannis NV, Sturgeon JA, Kao MC, Cooley C, Mackey S. Physical function and pain interference demonstrate poor longitudinal association in people living with chronic pain: A PROMIS investigation. Pain. 2017 Jun. DOI: 10.1097/j.pain.0000000000000881. PMID: 28221284