title: More on childhood clustering.
authors.forename: E
authors.initials: E
authors.lastname: Reynolds
mesh_terms: D002648:Child; D002675:Child, Preschool; D016000:Cluster Analysis; D015331:Cohort Studies; D015986:Confounding Factors, Epidemiologic; D005163:Factor Analysis, Statistical; D006801:Humans; D012140:Respiratory Tract Diseases / Q000453:epidemiology*; D012803:Sick Role