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根据短文的意思和所给的首字母，写出一个完整正确的单词

STOCKHOLM, Dec. 10 (Xinhua) -- China's pharmacologist Tu Youyou received her 2015 Nobel Prize in Physiology or Medicine here on Thursday.

"The discovery of Artemisinin（青蒿素） has led to d__1.___of a new drug that has  s__2.__ the lives of millions of people, halving the mortality rate of malaria during the past 15 years," said Professor Hans Forssberg, member of the Nobel Committee(委员会) for Physiology or Medicine.

Together with her team, Tu  m_3.____to extract（提取）, through trial（实验） and error（错误）, a substance from Artemisia annua, or sweet wormwood, that proved effective in reducing mortality rates for patients suffering from malaria.

Tu received half of this year's medicine p__4.__ of 4 million SEK (about 460,000 U.S. dollars), and the other half are equally __5.__by William Campbell and Satoshi Omura, who jointly discovered a novel therapy against infections(感染) caused by roundworm parasites（蛔虫寄生虫）.