通常从青春期开始，偏头痛主要侵袭年龄在35岁至45岁之间的人，但可殃及更年轻的人，包括儿童。
Commonly starting at puberty, migraine mostly affects those aged between 35 and 45 years but can trouble much younger people, including children.
近年来，每年的6月至9月期间，该地区都会遭到干旱的侵袭，粮食产量降低。
In recent years, droughts have hit the region between June and September, reducing yields.
我们在此报道一个II期多中心单一研究项试验，以评价来那度胺口服单一疗法治疗复发性或难治性侵袭性NHL的安全性和有效性。
We report the results of a phase II, single-arm, multicenter trial evaluating the safety and efficacy of lenalidomide oral monotherapy in patients with relapsed or refractory aggressive NHL.
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