Usher, S M Doppler cardiac output monitoring: a tool for all physicians. [electronic resource] - British journal of hospital medicine (London, England : 2005) Mar 2007 - 126-30 p. digital Publication Type: Journal Article; Review ISSN: 1750-8460 Standard No.: 10.12968/hmed.2007.68.3.22847 doi Subjects--Topical Terms: Blood Flow Velocity--physiologyCardiac Output--physiologyEchocardiography, Doppler--methodsHeart Diseases--diagnostic imagingHumansMonitoring, Physiologic