[An arbitrary classification of taxonomic group that is a division of a species; usually arise as a consequence of geographical isolation within a species and characterised by shared heredity, physical attributes and behavior, and in case of humans, by common history, nationality, or geographic distribution. ( NCI )]
UMLS (CSP) C0034510 Relation/PAR: HL7 Vocabulary Version 2.5
Relation/CHD: caucasian
Asian
African American
Other Race
Native Hawaiian or Other Pacific Islander
American Indian or Alaska Native
see chapter 3