Bold, R J Prospective, randomized trial of Doppler-assisted subclavian vein catheterization. [electronic resource] - Archives of surgery (Chicago, Ill. : 1960) Oct 1998 - 1089-93 p. digital Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 0004-0010 Standard No.: 10.1001/archsurg.133.10.1089 doi Subjects--Topical Terms: AdolescentAdultAgedAged, 80 and overCatheterization, Central Venous--methodsCross-Over StudiesFemaleHumansMaleMiddle AgedProspective StudiesRisk FactorsSubclavian Vein--diagnostic imagingUltrasonography, Doppler