title: [Detection of occult periodicities in the rhythmic activity of the heart in atrial fibrillation].
mesh_terms: D000328:Adult; D001281:Atrial Fibrillation / Q000503:physiopathology*; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction; D010507:Periodicity
vernacular_title: Vyiavlenie skrytykh periodichnosteĭ v ritmicheskoĭ deiatel'nosti serdtsa pri fibrilliatsii predserdiĭ.