Ontario Child Health Study (OCHS)
Other reference periods
- 2014 Ontario Child Health Study (OCHS)
- 2000-2001 (second follow-up) Ontario Child Health Study (OCHS)
- 1987 (first follow-up) Ontario Child Health Study (OCHS)
- 1983 Ontario Child Health Study (OCHS)
Generally, information is only available for reference periods after November 2000.
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