title: [Bad does not improve by repetition. Primary care gatekeeper model once more in debate].
authors.forename: J
authors.initials: J
authors.lastname: Stier
mesh_terms: D003362:Cost-Benefit Analysis; D005194:Family Practice / Q000331:legislation & jurisprudence*; D005858:Germany; D006801:Humans; D007883:Legislation, Medical; D012017:Referral and Consultation / Q000331:legislation & jurisprudence*; D013038:Specialization