组织类型
The cells might form a teratoma or could differentiate into an undesirable tissue type, or both. 这些干细胞可能形成畸胎瘤，或分化成不是想要的组织类型，甚或是两者同时发生。
Within each tissue type, they calculated the frequency that multiple genes were mutated in the same sample. 在每种组织类型中，他们计算了在相同的标本中多基因变异的频率。
