title: Alternate focusing fluids for passive acoustic targets.
authors: H
authors: H
authors: Boehme
authors: J E
authors: JE
authors: Stockton
mesh_terms: D000162:Acoustics; D002251:Carbon Tetrachloride; D005466:Fluorocarbons; D006801:Humans; D012996:Solutions; D014465:Ultrasonics
chemical_list: D005466:Fluorocarbons; D012996:Solutions; D002251:Carbon Tetrachloride