From the *Centre for Community Child Health Research, British Columbia Research Institute for Children's and Women's Health, Vancouver, British Columbia, Canada; †Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada; ‡Children's and Women's Health Centre of British Columbia, Vancouver, British Columbia, Canada; and the §Department of Anatomy and Cell Biology, University of British Columbia, Vancouver, British Columbia, Canada.
Received for publication November 5, 2003; revised June 28, 2004; accepted August 11, 2004.
Supported by the National Institutes of Health grant HD39783, Canadian Institutes of Health Research grant MOP42469, Canadian Institutes of Health Research/Canadian Occupational Therapy Foundation Post-Doctoral Fellowship (L.H.), a Senior Scholar Award from the Michael Smith Foundation for Health Research (R.E.G.), and a Human Early Learning Partnership and the British Columbia Ministry of Children and Family Development grant 02-2410.
Reprints: Liisa Holsti, PhD, Centre for Community Child Health Research, F6, 4480 Oak Street, Vancouver, British Columbia, V6H 3V4. Canada (e-mail: [email protected]).