Simple and easy quantitation of functional mitral valve area using novel automated flow measurement technique with real-time 3-D color Doppler echocardiography
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Compliance with ethical standards
Conflict of interest
Nozomi Watanabe, Shun Nishino and Yoshisato Shibata declare that they have no conflict of interest.
All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1964 and later revisions.
Informed consent was obtained from all patients for being included in the study.
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