CNN EarlyStart April 16, 2013 09:06:00
Celebrating this marathon as they do every year on this holiday. the injuries that we've seen the most of are on the lower extremities. so the knees down especially or the hips down because of the type of bomb this was and how it was detonated. a trauma surgeon described that also one of the heads of surgeonry here at brigham and women's hospital. let me bring what you they said about the injuries. >> the worst of these injuries have been injuries to the legs. there have been a lot of damage. there is a lot of blast effect from these type of explosions. a lot of injuries to the muscle, the ski...