如果研究产品做了标记，并且它的药理学被开业医生广泛地理解，那么一个详尽的研究者手册就没有必要了。

If the investigational product is marketed and its pharmacology is widely understood by medical practitioners, an extensive IB may not be necessary.

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研究者说：在大学人群中，区分娱乐喝酒的人和真正的美国精神障碍下统计手册上描写的标准的酗酒的人或许是有点困难的。

“In the college population, it may be difficult to sort out recreational drinking from true problem drinking with DSM-IV diagnostic criteria alone,” the researchers said.

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研究者说：在大学人群中，区分娱乐喝酒的人和真正的美国精神障碍下统计手册上描写的标准的酗酒的人或许是有点困难的。

“In the college population, it may be difficult to sort out recreational drinking from true problem drinking with DSM-IV diagnostic criteria alone, ” the researchers said.

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