Source:http://linkedlifedata.com/resource/umls/id/C0016330
MSH: A nonmetallic, diatomic gas that is a trace element and member of the halogen family. It is used in dentistry as flouride (FLUORIDES) to prevent dental caries.,CSP: nonmetallic, diatomic gas, symbol F, atomic number 9, atomic weight 18.998, that is a trace element and member of the halogen family.,NCI: An element with atomic symbol F, atomic number 9, and atomic weight 19.0.