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 number of natural killer T (NKT) cells in a specified volume of blood. NKT cells are a specialized population of T cells that express both a semi-invariant T cell receptor (TCR alpha beta) and surface antigens typically associated with natural killer cells.
Comment:
This term is not to be used for natural killer (NK) cells.