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Public HealthHealth SciencesEpidemiologic MethodsEpidemiologyOccupational HealthOccupational EpidemiologyOccupational Exposure ControlOccupational Health HazardsOccupational Health Risk AssessmentOccupational MedicineOccupational SafetyOccupational Exposure EpidemiologyOccupational Health EpidemiologyOccupational Health Surveillance SystemsOccupational Morbidity SurveillanceOccupational Surveillance Systems
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Nicholas Mays, S Challah, S. Patel et al. · BMJ · 1988 · 39 citations · Full text