Determination of left ventricular ejection fraction by visual estimation during real-time two-dimensional echocardiography
1982 ◽
Vol 104
(3)
◽
pp. 603-606
◽
1990 ◽
Vol 4
(4)
◽
pp. 193-202
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2006 ◽
Vol 27
(5)
◽
pp. 425-429
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1995 ◽
Vol 25
(4)
◽
pp. 937-942
◽
1982 ◽
Vol 2
(1)
◽
pp. 61-70
◽
2019 ◽
Vol 34
(12)
◽
pp. 2591-2600
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