Source:http://linkedlifedata.com/resource/umls/id/C0226875
NCI: The lower part of the gastrointestinal tract that includes the jejunum and ileum of the small intestine and the large intestine. (NCI),MSH: The segment of GASTROINTESTINAL TRACT that includes the small intestine below the DUODENUM, and the LARGE INTESTINE.,NCI: The lower part of the gastrointestinal tract that includes the jejunum and ileum of the small intestine and the large intestine.