premenopausal amenorrhea的用法和樣例：
例句
- Hereditary breast cancer commonly occurs in premenopausal women.
遺傳性乳癌通常發生於絕經前婦女。 - Now, tamoxifen is still the standard endocrine therapeutic drug or the premenopausal patients, but aromatase inhibitors can bring more benefit for the postmenopausal patients.
目前，三苯氧胺對絕經前患者仍是內分泌治療的標準用藥，但對絕經後患者應用芳香化酶抑製劑會有更大的效益。
