The Clinical Measurement Ontology (CMO), Measurement Methods Ontology (MMO), and Experimental Condition Ontology (XCO) are currently being developed at the Rat Genome Database. For more information about these vocabularies please see Shimoyama et al. Three ontologies to define phenotype measurement data. Front Genet. 2012;3:87. Epub 2012 May 28 or contact us (http://rgd.mcw.edu/contact/index.shtml).
Any method to determine the nature, properties, or composition of sterols in a specified sample of tissue after removal of that tissue from the body. Sterols are any of a group of steroids with a long (8 to 10 carbons) aliphatic side-chain at position 17 and at least one alcoholic group.