The New York Fire Department recently deployed a mobile CPR training unit that offer residents free CPR classes in all five of the city's boroughs, said John McFarland, chief of EMS field services. The goal of the program is to increase the number of people in New York City trained in bystander CPR, he said.

"We have seen that bystander CPR continues to improve in the city and is making a difference is cardiac-arrest survival," he said.

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