CBS News medical correspondent Dr. Jon LaPook and WebMD editor Dr. Michael Smith talk to Katie Couric about the common causes of esophageal cancer and the importance of screenings.
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Thu, 12/09/2010 - 4:19pm
CBS News medical correspondent Dr. Jon LaPook and WebMD editor Dr. Michael Smith talk to Katie Couric about the common causes of esophageal cancer and the importance of screenings.