881
882
von Donaldson, Laura (Autor),
2013
“... a concussion. We determined whether recent rule changes regulating contact to the head introduced...”Verfügbarkeit
883
von Purcell, Laura K (Autor)
2014
“...Concussion is a common injury among children and adolescents participating in organized sports...”Verfügbarkeit
884
von Gabriela Murguía Cánovas (Autor),
2013
“...Recently, there has been increased attention to concussions that occur during sports activities...”Verfügbarkeit
885
von Laura Donaldson (Autor),
2013
“... a concussion. We determined whether recent rule changes regulating contact to the head introduced...”Verfügbarkeit
886
887
von Wilkerson, Gary B. (Autor),
2020
“... processes that may be due to previous concussion. DESIGN: Cross-sectional study. SETTING: Residential...”Verfügbarkeit
888
889
890
891
892
893
894
895
896
897
898
899
900