DOI: 10.1055/s-00000099

Zeitschrift für Orthopädie und Unfallchirurgie

References

Cochrane AL.
Effectiveness and Efficiency: random Reflections on Health Services.

London: RSM Press; 1999

Cochrane AL.
Effectiveness and Efficiency: random Reflections on Health Services.

London: RSM Press; 1999

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