Source:http://linkedlifedata.com/resource/umls/id/C0048945
NCI: Polyunsaturated fatty acid with 20 carbons and 3 double bonds at the 9th, 12th, and 15th carbon from the methyl end.,NCI: A polyunsaturated long-chain fatty acid with a 20-carbon backbone and 3 double bonds, originating from the 9th, 12th and 15th positions from the methyl end, with all bonds in the cis- configuration.