title: [Characteristics of the atrial electrocardiographic complex in healthy children].
mesh_terms: D000293:Adolescent; D016275:Atrial Function; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography; D006321:Heart / Q000502:physiology*; D006801:Humans; D007223:Infant
vernacular_title: Kharakteristika predserdnogo kompleksa EKG zdorovykh deteĭ