Arthritis Research & Therapy

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The association between patellar alignment on magnetic resonance imaging and radiographic manifestations of knee osteoarthritis

Leonid Kalichman, Yuqing Zhang, Jingbo Niu, Joyce Goggins, Daniel Gale, Yanyan Zhu, David T Felson and David J Hunter*

Arthritis Research & Therapy 2007, 9:R26 doi:10.1186/ar2138

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