肥厚ventricular septal defect (vsd)室间隔缺损overriding of aorta
superior vena cava 下腔静脉:inferior vena cava 主动脉:aorta
文章解读美国超声心动图协会的建议
ejection period of ejection into aorta
abdominal aorta 3. subclavian artery 4. axillary artery 5.
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