...ease-free survival,DFS,time to treatment failure，TTF)长 4．不良反应(toxicity)少 5．药物价格(changes for medicine)低 晚期胃癌化学治疗不理想，近年开发新药、改良老药、设计新方案成为研究重点，DNA拓扑异构酶(DNA topoisomerases．Topo)是...
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有效的药物价格极其昂贵，而且很难买到。
The drugs that are available are much too expensive and difficult to find.
在一些受耐药结核病影响的国家中，药物价格在持续攀升。
Drug prices are rising in some of the countries affected by drug-resistant TB.
它也为讨论从何处获取有关获取药物、药物价格以及药物可得性的信息提供了机会。
It will also provide an opportunity to discuss where to obtain information on access to medicines, their prices and their availability.
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