On April 15, Boston trauma centers treated dozens of gravely injured patients in the hour after two bombs exploded at 2:50 p.m. at the finish line of the Boston Marathon. Caregivers were able to save all victims who made it to hospitals. The chart shows the time patients arrived, and a sampling of their injuries. The details come from the individual hospitals.
Hospitals size up the lessons of Marathon attacks
Chief among concerns: accurately identifying patients amid chaos