title: Epidemiology and surveillance.
authors.affiliation: Department of Epidemiology and Biostatistics, McGill University, Montreal, Quebec, Canada.
authors.forename: M R
authors.initials: MR
authors.lastname: Becklake
mesh_terms: D001249:Asthma / Q000175:diagnosis / Q000453:epidemiology*; D005060:Europe / Q000453:epidemiology; D006801:Humans; D009784:Occupational Diseases / Q000175:diagnosis / Q000453:epidemiology*; D011159:Population Surveillance; D012307:Risk Factors; D014481:United States / Q000453:epidemiology