title: Prevention of occupational disease: problems of data collection for adequate surveillance.
authors.forename: J B
authors.initials: JB
authors.lastname: Ross
mesh_terms: D002170:Canada / Q000453:epidemiology; D003625:Data Collection / Q000379:methods*; D006266:Health Education; D006801:Humans; D007256:Information Systems; D009369:Neoplasms / Q000453:epidemiology* / Q000517:prevention & control*; D009784:Occupational Diseases / Q000453:epidemiology* / Q000517:prevention & control*; D009787:Occupational Medicine; D011159:Population Surveillance