药物仅能轻微改善症状，如辉瑞的Aricept。

Drugs, such as Pfizer's Aricept, improve symptoms only minimally.

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克拉克的情报来源于辉瑞的全球线人网络、消费者密报和店内调查。

Mr Clark’s intelligence comes from Pfizer’s global network of informants, consumer tip-offs and in-store inspections.

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收购消息一经传出，辉瑞的股票就下跌了约10%，不过随后股价又有所回升。

Pfizer's share price fell by roughly a tenth on the news, though it later recovered a bit.

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