9/11 World Trade Center responders at increased risk for head and neck cancers. The study, which is the first to report on head and neck cancers in WTC first responders, found a 40 percent increase in diagnosis of these diseases between 2009 and 2012.

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9/11 World Trade Center responders at increased risk for head and neck cancers. The study, which is the first to report on head and neck cancers in WTC first responders, found a 40 percent increase in diagnosis of these diseases between 2009 and 2012.