Characteristic features of the ECG of premature infants during the first year of life. With a comment on a large Q in lead III and the incidence of pattern types in right and left precordial leads.
D000367:Age Factors; D001724:Birth Weight; D004562:Electrocardiography; D006321:Heart / Q000502:physiology*; D006339:Heart Rate; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007234:Infant, Premature