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APA Citation
Tierney, M., Fraser, A., & Kennedy, N. (2015). criterion validity of the International Physical Activity Questionnaire Short Form (IPAQ-SF) for use in patients with rheumatoid arthritis: comparison with the SenseWear Armband. Physiotherapy, 101(2), 193–197. http://access.bl.uk/ark:/81055/vdc_100032412758.0x000061