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).
This is any condition in which the main influencing factor is controlled atmospheric pressure, which involves controlling volume of the air, temperature of the air, and humidity of the air breathed. Controlled atmospheric pressure may be achieved by the use of a hypobaric or hyperbaric chamber.