Artemisinin and its derivatives represent an important new class antimalarial drug.

青蒿素及其衍生物代表着一类新型抗疟药。

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Objective Effect of artemisinin and its derivatives on multi-drug resistance of tumor cells.

目的探讨青蒿素及其衍生物的抗肿瘤耐药作用。

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Background and objective Recent researches discovered that artemisinin and its derivatives had anti-tumor activity.

背景与目的研究发现，青蒿素类药物具有抗肿瘤活性。

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As Jeffrey Li, the head of Novartis's Chinese operation, points out, there is also a shortage of facilities that can produce high quality artemisinin and its derivatives.

ECONOMIST: Treating malaria: A feverish response | The

The problem, says Yan Xiaohua, the president of Guilin Pharmaceuticals, one of China's leading producers of artemisinin and its derivatives, is not that there are too few plants, but that the price of leaves has shot through the roof.

ECONOMIST: Treating malaria: A feverish response | The