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去年美国审批的新药数量跌至过去5年年平均量的一半。据Nature ReviewsDrug Discovery(2003:2:3)的一篇评论报道,2002年美国食品与药物监督管理局(Food and Drug Administration,FDA)仅
Last year, the number of new drugs approved by the United States fell to half the annual average of the past five years. According to a review by Nature Reviews Drug Discovery (2003: 2: 3), the 2002 Food and Drug Administration (FDA)