Jellema, P., van der Windt, D. A., van der Horst, H. E., Stalman, W. A., & Bouter, L. M. (2007). Prediction of an unfavourable course of low back pain in general practice: Comparison of four instruments. Oxford University Press.

Jellema, Petra, Daniëlle AWM van der Windt, Henriëtte E. van der Horst, Wim AB Stalman, and Lex M. Bouter. Prediction of an Unfavourable Course of Low Back Pain in General Practice: Comparison of Four Instruments. Oxford University Press, 2007.

Jellema, Petra, et al. Prediction of an Unfavourable Course of Low Back Pain in General Practice: Comparison of Four Instruments. Oxford University Press, 2007.