title: The consequences of randomizing schools rather than children.
authors.affiliation: Lecturer, (b.kahan@qmul.ac.uk), Pragmatic Clinical Trials Unit, Queen Mary University of London, London, UK.
authors.forename: Brennan C
authors.initials: BC
authors.lastname: Kahan
authors.forename: Tim P
authors.initials: TP
authors.lastname: Morris
mesh_terms: D001249:Asthma / Q000628:therapy*; D019468:Disease Management; D006801:Humans; D064689:Nurses, Public Health; D012572:School Health Services / Q000458:organization & administration*