This research was supported financially by Canadian Institutes
of Health Research operating grant 200503MOP-145294-
PUB-CCAA-56847 that funded data collection efforts. Gopinath
Narasimhan was funded by a studentship awarded by the Canadian
Institutes of Health Research-Public Health Strategic Training
Initiative in Health Research grant—“Public Health and the Agricultural
Rural Ecosystem (PHARE)”, and an Ontario Graduate
Scholarship. None of the funding agencies had any role to play in
either the study design, interpretation of the data or in the writing
of the report.