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Barz, T; Melloh, M; Staub, L; Roeder, C; Lange, J; Smiszek, FG; Theis, JC; Merk, H (2008). The diagnostic value of a treadmill test in predicting lumbar spinal stenosis. European spine journal, 17(5), pp. 686-90. Berlin: Springer-Verlag 10.1007/s00586-008-0593-1
