The Mouse Adult Gross Anatomy Ontology and Mammalian Phenotype Ontology are downloaded weekly from the Mouse Genome Informatics databases at Jackson Laboratories (ftp://ftp.informatics.jax.org/pub/reports/index.html). For more information about these ontologies, see the MGI Publications Page at http://www.informatics.jax.org/mgihome/other/publications.shtml.
reduction of the mineral mass per unit area of bone, the hard, rigid form of connective tissue constituting most of the skeleton of vertebrates and composed chiefly of calcium salts; expressed as the amount of mineral per area cm^2 of bone (usually in g/cm^2), with results generated from Dual-energy X-ray absorptiometry (DXA or DEXA) tests