title: Physical principles of ultrasonic imaging and Doppler blood flow analysis.
authors.affiliation: Department of Pediatrics, Yale University School of Medicine, New Haven, Connecticut.
authors.forename: C S
authors.initials: CS
authors.lastname: Kleinman
mesh_terms: D004452:Echocardiography; D015150:Echocardiography, Doppler; D006801:Humans; D007231:Infant, Newborn; D014159:Transducers; D014463:Ultrasonography