方法：取瘢痕疙瘩和正常皮肤，采用组织块培养法进行成纤维细胞体外培养。
METHODS: Keloid and norm al skin tissue were collected for the fibroblasts in vitro using tissue-block cultivation.
方法：取5-10周流产人胚胎生殖腺嵴，采用组织块培养法培养人EG细胞。
Methods: Through tissue culture, the human EG cells were obtained by taking the gonadal ridges from human embryos aged 5~10 weeks.
方法采用组织块培养法培养羊膜细胞，酶消化法对细胞进行传代，应用免疫细胞化学的方法对细胞进行鉴定。
Methods Amnion cells from human were cultured with tissue piece method, passaged by trypsin digestion and identified with immunocytochemistry.
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