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Assessment of glycosaminoglycan (GAG) content. Human cartilage samples from patients subjected to arthroplasty secondary to OA or fracture were assessed for GAG content. Data represent mean ± SEM of GAG content (μg/mg) of dried cartilage as follows: patients >/≤ 70 years old (A), gender (B), and OA and fracture (C) of at least n = 6/group; Student t-test.
