这个词是什么意思？
In utero measurement corresponding to the sitting height (crown to rump) of the fetus. Length is considered a more accurate criterion of the age of the fetus than is the weight. The average crown-rump length of the fetus at term is 36 cm. (From Williams Obstetrics, 18th ed, p91)
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D018568 · MeSH 2026。
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