title: [Electrocardiographic characteristics in premature infants during their first three months of life].
mesh_terms: D004562:Electrocardiography; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007234:Infant, Premature; D019369:Life
keywords: ELECTROCARDIOGRAPHY; INFANT, PREMATURE
vernacular_title: Osobennosti elektrokardiogramm u nedonoshennykh detei pervykh 3 mesiatsev zhizni.