"I think that F.D.A. 's credibility really depends on being able to explain its decisions well," said Dr. Joshua Sharfstein, F.D.A.' s principal deputy commissioner.

乔舒亚夏福斯坦先生，药品食品局的首席副执行官说：“我认为药品食品局的可信度完全取决于它能否很好地解释它的决定。”

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The CDC's Ali Khan and the FDA's Joshua Sharfstein said that fear is unfounded.

VOA: standard.2010.07.21

Joshua Sharfstein, principal deputy commissioner at the U.S.Food and Drug Administration (FDA).

VOA: standard.2010.07.21

The FDA does require bottled water companies to test for contaminants and other problems, says Joshua Sharfstein, M.

CNN: Is your bottled water safe?

Joshua Sharfstein, an associate commissioner who is expected to be closely involved with the agency's drug division, has already started.

FORBES: Pharmaceuticals

"The increasing popularity of consumption of caffeinated alcoholic beverages by college students and reports of potential health and safety issues necessitates that we look seriously at the scientific evidence as soon as possible, " said Dr. Joshua Sharfstein, principal deputy commissioner of food and drugs.

CNN: FDA: Caffeinated alcoholic drinks may be illegal