title: [What do we know about the effects of user fees in general practice?].
authors.forename: Kjeld
authors.initials: K
authors.lastname: Møller Pedersen
mesh_terms: D003718:Denmark; D005251:Fees, Medical; D058006:General Practice / Q000191:economics*; D006801:Humans; D012051:Reimbursement Mechanisms / Q000458:organization & administration*