超声心动图观察二尖瓣及肺静脉前向血流速度与肺静脉反流速度相关性的意义
초성심동도관찰이첨판급폐정맥전향혈류속도여폐정맥반류속도상관성적의의
Significance of the relationship between mitral inflow velocity patterns, pulmonary venous forward flow velocities and flow velocity of atrial reversal recorded by transthoracic Doppler echocardiography
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