FDA表示死亡是因服用达尔丰还是因为事实上的药物过量所致很难辨别。
The FDA said it was difficult to show that deaths associated with Darvon use were not, in fact, overdoses.
采用随机区组设计方法，研究了达尔丰喷施时期和喷施量对玉米产量和其它经济性状的影响。
By using randomized-block design of two factors, the effects of Daerfeng fertilizer and spraying date on maize yeild and other economic characteristics were studied.
FDA同时表示2009年约有1000万美国患者在服用达尔丰或者其仿制药，开具了1800万的处方。
The agency says 10 million patients took Darvon or a generic version in 2009 and 18 million prescriptions were dispensed.
FDA同时表示2009年约有1000万美国患者在服用达尔丰或者其仿制药，开具了1800万的处方。
The agency says 10 million patients took Darvon or a generic version in 2009 and 18 million prescriptions were dispensed.
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