| 1 | She pioneered the use of the drug. | |
| 2 | He talked about how to produce medicine by synthesis. | |
| 3 | They accused the West of dumping out-of-date medicines on Third World countries. | |
| 4 | So why is it essential to take these medicines in combination? | |
| 5 | But for drugs already on the market, no such requirement exists. |
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