Fleming, L E Disease clusters: a central and ongoing role in occupational health. [electronic resource] - Journal of occupational medicine. : official publication of the Industrial Medical Association Jul 1991 - 818-25 p. digital Publication Type: Journal Article; Review ISSN: 0096-1736 Subjects--Topical Terms: Cluster AnalysisHumansOccupational Diseases--epidemiologyOccupational ExposureRisk Factors