Dr. Jon Hallberg, Assistant Professor, Department of Family Medicine and Community Health Medical Director at the University of Minnesota. He is a regular medical analyst on MPR's All Things Considered. (Photo courtesy of Dr. Jon Hallberg)
Dr. Jon Hallberg explains the effects of arsenic
December 6, 2007
St. Paul, Minn. —
Dr. Jon Hallberg is a physician in family medicine at the University of Minnesota. He spoke to All Things Considered host Tom Crann about the effects of arsenic and its dangers.
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