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The expression of MMP13 (collagenase-3), a member of the matrix metalloproteinase family, is increased in vivo as well as in cultured osteosarcoma cell lines by parathyroid hormone (PTH), a major(More)
Due to the dependency on aromatic precursors, the growth of Salmonella typhimurium aroA- is limited in immunocompetent mice. Here we show that H-21-A beta-/- mice (lacking MHC class II molecules and(More)