title: A cluster of cases: coincidence or cause for concern?
authors.forename: J
authors.initials: J
authors.lastname: Simpson
authors.forename: D
authors.initials: D
authors.lastname: Newell
mesh_terms: D001932:Brain Neoplasms / Q000453:epidemiology*; D016000:Cluster Analysis; D003032:Coal Mining; D006801:Humans; D008297:Male; D009784:Occupational Diseases / Q000453:epidemiology*; D012042:Registries; D012307:Risk Factors