这个词是什么意思？
A condition caused by underdevelopment of the whole left half of the heart. It is characterized by hypoplasia of the left cardiac chambers (HEART ATRIUM; HEART VENTRICLE), the AORTA, the AORTIC VALVE, and the MITRAL VALVE. Severe symptoms appear in early infancy when DUCTUS ARTERIOSUS closes.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D018636 · MeSH 2026。
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