J. Crawford

Ontario Child Health Study. II. Six-month prevalence of disorder and rates of service utilization.

P. Szatmari, D. Offord, M. Boyle, 1987, Archives of general psychiatry.

Chronic illness and functional limitation in Ontario children: findings of the Ontario Child Health Study.

P. Szatmari, D. Offord, M. Boyle, 1986, CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne.

Ontario Child Health Study. I. Methodology.

P. Szatmari, D. Offord, M. Boyle, 1987, Archives of general psychiatry.