Source:http://linkedlifedata.com/resource/umls/id/C0039034
MSH: A concept that stands for or suggests something else by reason of its relationship, association, convention, or resemblance. The symbolism may be mental or a visible sign or representation. (From Webster, 3d ed),CSP: concept that stands for or suggests something else by reason of its relationship, association, convention, or resemblance; may be mental or a visible sign or representation.