Myburgh, C., Boyle, E., Lauridsen, H. H., Hestbaek, L. and Kongsted, A. (2015) “What influences retrospective self-appraised recovery status among Danes with low-back problems? A comparative qualitative investigation”., Journal of Rehabilitation Medicine, 47(8), pp. 741–747. doi: 10.2340/16501977-1987.