Assessment of left ventricular contraction and relaxation by systolic and diastolic time intervals measured from the first derivative of apexcardiogram in cardiomyopathy.
1985 ◽
Vol 7
(7)
◽
pp. 951-963
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1986 ◽
Vol 50
(11)
◽
pp. 1085-1090
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2008 ◽
Vol 21
(10)
◽
pp. 1138-1144
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