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1 Adams MA, "What is intervertebral disc degeneration, and what causes it" 31 : 2151-2161, 2006
2 Roughley PJ, "The role of proteoglycans in aging, degeneration and repair of the intervertebral disc" 30 : 869-874, 2002
3 Landis JR, "The measurement of observer agreement for categorical data" 33 : 159-174, 1977
4 Nachemson AL, "The lumbar spine an orthopaedic challenge" 1 : 59-71, 1976
5 Kettler A, "Review of existing grading systems for cervical or lumbar disc and facet joint degeneration" 15 : 705-718, 2006
6 Takahashi K, "Resolving discogenic pain" 17 (17): 428-431, 2008
7 Regatte RR, "Proteoglycan depletion-induced changes in transverse relaxation maps of cartilage: comparison of T2 and T1rho" 9 : 1388-1394, 2002
8 Mooney V, "Presidential address: International Society for the Study of the Lumbar Spine; Dallas, 1986; where is the pain coming from?" 12 : 754-759, 1987
9 Thompson JP, "Preliminary evaluation of a scheme for grading the gross morphology of the human intervertebral disc" 15 : 411-415, 1990
10 Moon CH, "Part 2: quantitative proton T2 and sodium magnetic resonance imaging to assess intervertebral disc degeneration in a rabbit model" 37 : E1113-E1119, 2012
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27 Saar G, "Assessment of glycosaminoglycan concentration changes in the intervertebral disc via chemical exchange saturation transfer" 25 : 255-261, 2012
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29 Blumenkrantz G, "A feasibility study of in vivo T1rho imaging of the intervertebral disc" 24 : 1001-1007, 2006
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