title: Epidemiology at the edge.
authors: Health Effects Institute, 955 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.
authors: D S
authors: DS
authors: Greenbaum
mesh_terms: D003657:Decision Making; D016021:Epidemiologic Studies; D019317:Evidence-Based Medicine; D006291:Health Policy; D006801:Humans; D011050:Policy Making; D011634:Public Health; D011643:Publishing