the following types and numbers of injuries occurred among the 112 immediate survivors of the explosion : 37 head injuries -- 28 concussions , 20 scalp lacerations , 13 skull fractures , 6 facial bone fractures , 4 cerebral contusions , 5 dural lacerations , 2 cerebrospinal fluid fistulas , and 2 intracerebral hematomas ;
C0018674
head injuries
C0037304
skull fractures