PT - JOURNAL ARTICLE AU - Sophie Laforest AU - Yvonne Robitaille AU - Danièle Dorval AU - Dominique Lesage AU - Barry Pless TI - Severity of fall injuries on sand or grass in playgrounds AID - 10.1136/jech.54.6.475 DP - 2000 Jun 01 TA - Journal of Epidemiology and Community Health PG - 475--477 VI - 54 IP - 6 4099 - http://jech.bmj.com/content/54/6/475.short 4100 - http://jech.bmj.com/content/54/6/475.full SO - J Epidemiol Community Health2000 Jun 01; 54