Premature ovarian failure (POF) is a complicated and heterogeneous disease.
卵巢早衰病因复杂，多数病例病因不明。
However asthma is a heterogeneous disease, and in some patients the symptoms can not be controlled by routine treatments.
但是哮喘是一种异质性的疾病，部分患者对常规哮喘治疗反应欠佳。
As a result of gene expression assays, there is growing recognition that breast cancer is a molecularly heterogeneous disease.
作为基因表达分析的结果，人们越来越认识到，乳腺癌是一种异质性疾病的分子。
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