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).
A condition in which the major influencing factor is peripheral nerve myelin, a lipoproteinaceous substance largely composed of phospholipids and proteins, which forms the sheaths surrounding the axons of peripheral nerves, that is, nerves that are not part of either the brain or spinal cord of the organism.