[Norms of basic characteristics of electrocardiography and their dynamics according to age in children under 14 years of age].
D002648:Child; D004562:Electrocardiography; D006801:Humans
ELECTROCARDIOGRAPHY
Normativy osnovnykh kharakteristik elektrokardiogramm i ikh vozrastnaia dinamika u detei v vozraste do 14 let.