2
3
4
by Cramer, J. A.
Published in Diabetes Care (2004)
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5
by Cramer, J.S.
Published in SSRN Electronic Journal (2003)
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6
by Cramer, J.S.
Published in Revue économique (1961)
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7
by Cramer, J. S.
Published in Revue économique (1961)
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8
12
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14
15
by Cramer, J. A, Scheyer, R. D
Published in BMJ (1990)
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16
17
18
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