Variations in the duration of phases of the cardiac cycle in normal hearts as studied by the electrokymograph.
WILLIS
K
K
EDDLEMAN
E E
EE
ACKER
J K
JK
POULOS
E
E
HEYER
H E
HE
D006321:Heart; D006339:Heart Rate; D006801:Humans; D009200:Myocardial Contraction