title: Unity or fragmentation.
authors.forename: H David
authors.initials: HD
authors.lastname: Crombie
mesh_terms: D000574:American Medical Association / Q000458:organization & administration*; D006801:Humans; D007348:Insurance, Health / Q000331:legislation & jurisprudence*; D007400:Interprofessional Relations; D010820:Physicians / Q000331:legislation & jurisprudence*; D014481:United States