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Barz, Thomas; Staub, Lukas; Melloh, Markus; Hamann, Gregor; Lord, Sarah J; Chatfield, Mark D; Bossuyt, Patrick M; Lange, Joern; Merk, Harry R (2014). Clinical validity of the nerve root sedimentation sign in patients with suspected lumbar spinal stenosis. Spine Journal, 14(4), pp. 667-674. Elsevier 10.1016/j.spinee.2013.06.105
Melloh, Markus; Barz, Thomas; Staub, Lukas P; Lord, Sarah J; Merk, Harry R; Theis, Jean-Claude (2011). Clinical validity of the nerve root sedimentation sign for the diagnosis of lumbar spinal stenosis. Australasian Epidemiologist, 18(2), pp. 101-102. Melbourne: Informit
Barz, Thomas; Melloh, Markus; Staub, Lukas P; Lord, Sarah J; Lange, Jörn; Röder, Christoph P; Theis, Jean-Claude; Merk, Harry R (2010). Nerve root sedimentation sign: evaluation of a new radiological sign in lumbar spinal stenosis. Spine, 35(8), pp. 892-7. Hagerstown, Md.: Lippincott Williams & Wilkins 10.1097/BRS.0b013e3181c7cf4b