Concussions in the OHL and NHL.

Total numbers of concussions, suspected concussions and suspected concussions associated with facial fractures occurring during all of regular season play are shown for each season in the OHL and NHL.本数据集展示了安大略冰球联盟（OHL）与国家冰球联盟（NHL）各赛季内，所有常规赛阶段发生的脑震荡、疑似脑震荡，以及伴随面部骨折的疑似脑震荡总例数。