title: [Assessing the clinical significance of extrasystolic arrhythmias in healthy young people].
authors.forename: G I
authors.initials: GI
authors.lastname: Smirnov
mesh_terms: D000293:Adolescent; D000328:Adult; D005117:Cardiac Complexes, Premature / Q000209:etiology*; D005260:Female; D006801:Humans; D008297:Male; D012016:Reference Values; D013177:Sports