Salo, P., Ylinen, J., Kautiainen, H., Arkela-Kautiainen, M., & Häkkinen, A. (2010). Reliability and validity of the finnish version of the neck disability index and the modified neck pain and disability scale. Spine (Philadelphia, Pa. 1976), 35(5), 552. https://doi.org/10.1097/BRS.0b013e3181b327ff
Chicago Style (17th ed.) CitationSalo, Petri, Jari Ylinen, Hannu Kautiainen, Marja Arkela-Kautiainen, and Arja Häkkinen. "Reliability and Validity of the Finnish Version of the Neck Disability Index and the Modified Neck Pain and Disability Scale." Spine (Philadelphia, Pa. 1976) 35, no. 5 (2010): 552. https://doi.org/10.1097/BRS.0b013e3181b327ff.
MLA (9th ed.) CitationSalo, Petri, et al. "Reliability and Validity of the Finnish Version of the Neck Disability Index and the Modified Neck Pain and Disability Scale." Spine (Philadelphia, Pa. 1976), vol. 35, no. 5, 2010, p. 552, https://doi.org/10.1097/BRS.0b013e3181b327ff.