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 measurement in which the number of individuals in a study population that display subcutaneous tumors at a point in time or develop subcutaneous tumors within a determined period of time are compared to the total number of individuals in the study population, expressed as a percentage or ratio. A subcutaneous tumor is a neoplasm or new growth of tissue in which cell multiplication is more or less uncontrolled and progressive occurring in and composed of cells specific to the hypodermis, lowermost layer of the integumentary system in vertebrates.