Methods Epithelial cells were isolated from sample tissue by cold trypsinization and cultured in serum-free growth medium.
方法 标本组织块用冷消化法分离出尿路
胞，培
于无血清生长培基。
Methods Epithelial cells were isolated from sample tissue by cold trypsinization and cultured in serum-free growth medium.
方法 标本组织块用冷消化法分离出尿路胞，培于无血清生长培基。
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