Accident and emergency care at the primary-secondary interface : a systematic review of the evidence on substitution
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Purchaser plurality in UK health care : is a consensus emerging and is it the right one?
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The diffusion of two technologies for renal stone treatments across Europe; by Stefan Kirchberger...[et al.], and based on country reports from all EC member states and Sweden and Factors affecting the diffusion of three kinds of innovative medical technology in European Community countries and Sweden ; by Barbara Stocking