App alerts CPR-trained people to emergencies

Sudden cardiac arrest requires immediate CPR to prevent brain damage; a smartphone app connected to local 911 emergency systems alerts CPR-trained people within a quarter mile radius that their help is needed.

The original article can be found here: http://rss.cnn.com/~r/rss/cnn_tech/~3/ue3uCr3nj9U/index.html

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