The OARSI core set of performance-based measures for knee osteoarthritis is reliable but not valid and responsive.

MLA

Tolk, J. J., et al. “The OARSI Core Set of Performance-Based Measures for Knee Osteoarthritis Is Reliable but Not Valid and Responsive.” Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA, vol. 27, no. 9, Sept. 2019, pp. 2898–909. EBSCOhost, https://doi.org/10.1007/s00167-017-4789-y.

APA

Tolk, J. J., Janssen, R. P. A., Prinsen, C. A. C., Latijnhouwers, D. A. J. M., van der Steen, M. C., Bierma-Zeinstra, S. M. A., & Reijman, M. (2019). The OARSI core set of performance-based measures for knee osteoarthritis is reliable but not valid and responsive. Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA, 27(9), 2898–2909. https://doi.org/10.1007/s00167-017-4789-y

Chicago

Tolk, J J, R P A Janssen, C A C Prinsen, D A J M Latijnhouwers, M C van der Steen, S M A Bierma-Zeinstra, and M Reijman. 2019. “The OARSI Core Set of Performance-Based Measures for Knee Osteoarthritis Is Reliable but Not Valid and Responsive.” Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA 27 (9): 2898–2909. doi:10.1007/s00167-017-4789-y.