Figure 2.

The relationship between total collagen and extractable collagen pool. Total collagen was measured as hydroxyproline per wet weight and extractable collagen pool was expressed as a percentage of total amount of collagen. Open and closed circles represent OA and reference groups, respectively.

Hosseininia et al. BMC Musculoskeletal Disorders 2013 14:18   doi:10.1186/1471-2474-14-18
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