title: Intrapulmonary Doppler for continuous measurement of cardiac output.
authors.forename: P M
authors.initials: PM
authors.lastname: Heerdt
mesh_terms: D002302:Cardiac Output; D002407:Catheterization, Swan-Ganz / Q000295:instrumentation*; D006801:Humans; D013997:Time Factors; D014465:Ultrasonics