这个词是什么意思？
An assisted fertilization technique consisting of the microinjection of a single viable sperm into an extracted ovum. It is used principally to overcome low sperm count, low sperm motility, inability of sperm to penetrate the egg, or other conditions related to male infertility (INFERTILITY, MALE).
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D020554 · MeSH 2026。
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