Pre-ejection period: measuring beta-adrenergic influences upon the heart.
D006321:Heart / Q000294:innervation*; D006801:Humans; D009200:Myocardial Contraction; D011674:Pulse; D011941:Receptors, Adrenergic / Q000502:physiology*; D011943:Receptors, Adrenergic, beta / Q000502:physiology*; D013599:Systole
D011941:Receptors, Adrenergic; D011943:Receptors, Adrenergic, beta