Laslett M, McDonald B, Tropp H, Aprill CN, Öberg B. Agreement between diagnoses reached by clinical examination and available reference standards: a prospective study of 216 patients with lumbopelvic pain. BMC Musculoskelet Disord. 2005; 6: 28. Published online 2005 June 9. doi: 10.1186/1471-2474-6-28.
Herbert JJ, Marcus RL, Koppenhaver SL et al. Postoperative rehabilitation following lumbar dicectomy with quantification of trunk muscle morphology and function: a case report and review of the literature. Journal of Orthopaedic & Sports Physical Therapy. 2010 (7); 40: 402-412.