Animals were killed at 4 and 12 weeks after implantation surgery and undecalcified sections were prepared and examined histologically and histomorphometrically.
种植术后第4、12周分2批处死动物，制作不脱钙标本切片，形态学观察及骨计量学检测。
Methods Frozen sections of SD rat brain tissues were prepared.
方法常规方法制备sd大鼠脑组织冰冻切片。
The gastrocnemius muscles of each group were prepared for paraffin sections.
取各组腓肠肌做组织切片观察。
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