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).
The average blood pressure within an artery over a specified period of time. It is often calculated using the formula of one third systolic pressure plus two thirds diastolic pressure, or alternatively, using the formula diastolic pressure plus 1/3 of the difference between systolic pressure and diastolic pressure (i.e. 1/3 pulse pressure).