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APA Citation
Kaulhausen, T., Knoell, P., Stein, G., Siewe, J., Hellmich, M., Otto, C., Sayar, A., Yagdiran, A., Beyer, F., Zarghonni, K., Eysel, P., & Sobottke, R. (2012). efficacy of an interspinous decompression device versus nonoperative treatment for lumbar spinal stenosis: an example for a randomized, controlled trial. Clinical investigation, 2, 1163–1169. http://access.bl.uk/ark:/81055/vdc_100126058832.0x000009