Dr. David Agus, professor of medicine at the University of Southern California, talks to the "CBS This Morning" co-hosts about the growing body of research suggesting that achy joints can signal a ... more 
Dr. David Agus, professor of medicine at the University of Southern California, talks to the "CBS This Morning" co-hosts about the growing body of research suggesting that achy joints can signal a change in the air. less 
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Thu, Oct 17, 2013 11:43 AM EDT