Research article
Bone morphogenetic protein-2-induced Wnt/β-catenin signaling pathway activation through enhanced low-density-lipoprotein receptor-related protein 5 catabolic activity contributes to hypertrophy in osteoarthritic chondrocytes
Arthritis Research & Therapy 2012, 14:R82 doi:10.1186/ar3805
See related editorial by Chan and Little, http://arthritis-research.com/content/14/3/119
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