title: The need for directly measured health data in Canada.
authors.forename: Mark
authors.initials: M
authors.lastname: Tremblay
mesh_terms: D000293:Adolescent; D000328:Adult; D001168:Arthritis / Q000453:epidemiology; D002170:Canada / Q000453:epidemiology; D002648:Child; D006304:Health Status; D006306:Health Surveys; D006801:Humans; D009765:Obesity / Q000453:epidemiology; D011159:Population Surveillance / Q000379:methods*; D015995:Prevalence; D015203:Reproducibility of Results