Cancer was the leading cause of death in more US counties in 2015 than 13 years earlier, a new study finds, while fewer counties reported heart disease as the top killer

Cancer was the leading cause of death in more US counties in 2015 than 13 years earlier, a new study finds, while fewer counties reported heart disease as the top killer https://t.co/icZnZsP0K4

— CNN (@CNN) November 13, 2018