1. Trends in sports: a multinational perspective;Kamphorst, T.J.; Roberts, K.,1989
2. L'enfant et le sport;Durand, M.,1987
3. Youth sport in Canada;Valeriote, T.A.; Hansen, L.,1988
4. The incidence of injuries among 87,000 Massachusetts' children and adolescents: results ofthe 1980-1981 statewide childhood injury prevention program surveillance system;Gallagher, S.S.; Finison, K.; Goodenough, S.;AmJ Public Health,1984
5. Apercu des blessures sportives rapportees dans la base de donnees du programme des h6pitaux Canadiens pour la declaration et la prevention des traumatismes;Ellison, L.F.; Mackenzie, S.;Maladies Chroniques du Canada,1993