title: Clusters, cataracts, and concerned citizens.
authors.forename: J M
authors.initials: JM
authors.lastname: Elwood
mesh_terms: D001294:Attitude to Health; D002386:Cataract / Q000453:epidemiology*; D016000:Cluster Analysis; D006801:Humans; D007223:Infant; D009520:New Zealand / Q000453:epidemiology