Barons, Martine J., Griffiths, Frances, Parsons, Nicholas R., Alba, Anca, Thorogood, Margaret, Medley, Graham and Lamb, S. E. (Sallie E.) (2015) Matching patients to an intervention for back pain : classifying patients using a latent class approach. Journal of Evaluation in Clinical Practice, Volume 20 (Number 4). pp. 544-550. doi:10.1111/jep.12115