1. 1. Deyo, R.A. & Weinstein, J.N. (2001). Low back pain. N Engl J Med. 344(5), 363-370. doi: 10.1056/NEJM200102013440508
2. 2. Ushewokunze, S., Abbas, N., Dardis, R. & Killeen, I. (2008). Spontaneously disappearing lumbar disc protrusion. Br J Gen Pract. 58(554), 646-647. doi: 10.3399/bjgp08X341968
3. 3. Weinstein, J.N., Lurie, J.D., Tosteson, T.D., Skinner, J.S., Hanscom, B., Tosteson, A.N., Herkowitz, H., Fischgrund, J., Cammisa, F.P., Albert, T. & Deyo, R.A. (2006). Surgical vs nonoperative treatment for lumbar disk herniation: the Spine Patient Outcomes Research Trial (SPORT) observational cohort. JAMA. 296(20), 2451-2459. doi: 10.1001/jama.296.20.245
4. 4. Ellenberg, M., Reina, N., Ross, M., Chodoroff, G., Honet, J.C. & Gross, N. (1989). Regression of herniated nucleus pulposus: two patients with lumbar radiculopathy. Arch Phys Med Rehabil. 70(12), 842-844.
5. 5. Keskil, S., Ayberk, G., Evliyaoglu, C., Kizartici, T., Yucel, E. & Anbarci, H. (2004). Spontaneous resolution of “protruded” lumbar discs. Minim Invasive Neurosurg. 47(4), 226-229. doi: 10.1055/s-2004-818517