Study of Sand Versus Wood Chip Surfaces on School Playgrounds to Minimize Injury in School Children
NCT00213174
·
clinicaltrials.gov ↗
PHASE3
Phase
UNKNOWN
Status
34
Enrollment
OTHER
Sponsor class
Conditions
Wounds and Injuries
Closed Head Injury
Interventions
BEHAVIORAL:
school playgrounds
Sponsor
The Hospital for Sick Children
Collaborators
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