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Przejdź do czatuMeasuring the efficiency of health systems of OECD countries by data envelopment analysis - https://avesis.ankara.edu.tr/yayin/415447cf-35f8-4d88-89f9-6e99a97b62c3/measuring-the-efficiency-of-health-systems-of-oecd-countries-by-data-envelopment-analysis