Researchers have been looking at how the attack on the Boston Marathon led to a number of hearing related injuries. Doctors say Doctors say 90% of patients hospitalized for injuries also had ruptured ... more 
Researchers have been looking at how the attack on the Boston Marathon led to a number of hearing related injuries. Doctors say Doctors say 90% of patients hospitalized for injuries also had ruptured ear drums. Michelle Miller reports. less 
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Mon, May 25, 2015 7:29 PM EDT