title: Influence of heart rate on left ventricular isovolumic relaxation time: a Doppler study in healthy newborns.
authors.affiliation: Institute of Pediatrics and Gynecologic, University La Sapienza, Rome, Italy.
authors.forename: Antonio
authors.initials: A
authors.lastname: De Merulis
authors.forename: Giulio
authors.initials: G
authors.lastname: Calcagni
authors.forename: Paolo
authors.initials: P
authors.lastname: Versacci
authors.forename: Renato
authors.initials: R
authors.lastname: Lucchini
authors.forename: Flavia
authors.initials: F
authors.lastname: Ventriglia
authors.forename: Bruno
authors.initials: B
authors.lastname: Marino
mesh_terms: D003326:Coronary Circulation / Q000502:physiology; D018618:Echocardiography, Doppler, Color; D018619:Echocardiography, Doppler, Pulsed; D005260:Female; D006339:Heart Rate / Q000502:physiology*; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D007229:Infant Welfare; D007231:Infant, Newborn; D008297:Male; D009200:Myocardial Contraction / Q000502:physiology*; D011237:Predictive Value of Tests; D012016:Reference Values; D013995:Time; D016276:Ventricular Function