Lewin AY (1983). “Comments on ‘Measuring Routine Nursing Service Efficiency: A Comparison of Cost Per Patient Day and Data Envelopment Analysis Models’.” HEALTH SERVICES RESEARCH 18(2): 206-208.

Lewin AY (1983). “Comments on ‘Measuring Routine Nursing Service Efficiency: A Comparison of Cost Per Patient Day and Data Envelopment Analysis Models’.” HEALTH SERVICES RESEARCH 18(2): 206-208.

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