Pfizer and Allergan declined to comment.
辉瑞和艾尔建都拒绝对此事发表评论。
Pfizer and Allergan have always had an exit strategy in place, the source said.
不过该消息人士还表示,辉瑞和艾尔建一直都有一套退出策略。
Pfizer and Novartis have formed their own biotech divisions, and Allergan will surely follow.
辉瑞和诺华制药已经设立了各自的生物科技部门,爱力根也一定会紧跟其后。
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