upper level of normal range
...V DNA水平高于2 000 IU/ml（约1 0000 copy/ml）和（或）血清ALT水平超过实验室检测的正常值上限（upper level of normal range，ULN），且肝活检（或在HBV感染患者中经过证实的无创标志物）采用标准化评分系统显示中度至重度活动性炎症坏死..
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upper level of normal range
正常范围的上限值
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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According to American College of Endocrinology literature, the range of normal TSH level is broad, from 0.5 to an upper limit of near 5, depending on a patient's gender, age and other factors.
WSJ: U.S. Track's Unconventional Physician