Foster, N. E., Konstantinou, K., Lewis, M., Ogollah, R., Dunn, K. M., van der Windt, D., Beardmore, R., Artus, M., Bartlam, B., Hill, J. C., Jowett, S., Kigozi, J., Mallen, C., Saunders, B., & Hay, E. M. (2017). The clinical and cost-effectiveness of stratified care for patients with sciatica: the SCOPiC randomised controlled trial protocol (ISRCTN75449581). BMC Musculoskeletal Disorders, 18, Article 172. https://doi.org/10.1186/s12891-017-1513-5