title: Challenges in Interpreting Deformation Values by Two-Dimensional Speckle-Tracking Echocardiography in Preterm and Term Infants.
authors.affiliation: Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri; Department of Pediatrics, Goryeb Children's Hospital, Morristown, New York.
authors.forename: Philip T
authors.initials: PT
authors.lastname: Levy
authors.affiliation: Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri.
authors.forename: Gautam K
authors.initials: GK
authors.lastname: Singh
mesh_terms: D004452:Echocardiography; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D015203:Reproducibility of Results; D016277:Ventricular Function, Left