方法：裸鼠表皮分别用四氧化钌和锇酸固定后电镜下观察裸鼠表皮角质层脂质的超微结构。
Methods: Ruthenium tetroxide and osmium tetroxide were compared as post fixative in the preparation of hairless epidermis for transmission electron microscopic examination.
方法取人骨髓间充质干细胞，使其附着于冻干松质骨和羟基磷灰石，并植入裸鼠皮下。
Methods the human bone marrow mesenchymal stem cells, which adhered to freeze dried cancellous and hydroxyapatite, were implanted in the nude mice subcutaneously.
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