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(a) Protein expression of different intervertebral discs in Group A. (b) Analysis of aggrecan expression from L1/L2 to L6/S1 level intervertebral discs in Group A (P > 0.05). (c) Analysis of collagen II expression from L1/L2 to L6/S1 level intervertebral discs in Group A (P > 0.05).
