| http://www.w3.org/ns/prov#value | - Inclusion criteria were knee or low back pain on most days for at least 3 months,19 and corresponding degenerative changes on x-ray, such as osteophytes, joint (or disc) space loss, subchondral bone cysts, or subchondral bone sclerosis.1 Anteroposterior and lateral radiographs were obtained.
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