Metaplasia is not a normal physiologic process and may be the first step toward neoplasia.

化生不是生理过程，而可能是肿瘤形成的先兆。

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Metaplasia is not a normal physiologic process and may be the first step toward neoplasia.

化生不是生理过程，而可能是肿瘤形成的先兆。

youdao