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.
any anomaly in the concentration of any of the vitamin A compounds, retinol, retinal (retinaldehyde) and retinoic acid; animals can not synthesize vitamin A de novo, but form it through oxidative cleavage of carotenoids supplied in the diet