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1
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2
Did Blue Cross and Blue Shield suffer from adverse selection? evidence from the 1950s
Veröffentlicht 2002kostenfrei
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3
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4
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5
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6
The importance of group coverage how tax policy shaped US health insurance
Veröffentlicht 2000kostenfrei
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7
From home to hospital the evolution of childbirth in the United States, 1927 - 1940
Veröffentlicht 2004kostenfrei
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8
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9
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10
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11