[Periodic changes in cardiac activity and vascular tonus in healthy subjects].
D002302:Cardiac Output; D006321:Heart / Q000502:physiology*; D006329:Heart Conduction System; D006801:Humans; D012119:Respiration; D014666:Vasomotor System / Q000502:physiology
Periodichni zmini diial'nosgi sertsia i sudinnogo tonusu u zdorovikh liudeĭ.