NIH 1998 R01 HD |
Public Use Sample of the 1920 Census Ruggles, Steven / University of Minnesota Twin Cities |
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NIH 1997 R01 HD |
Public Use Sample of the 1920 Census Ruggles, Steven / University of Minnesota Twin Cities |
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NIH 1996 R01 HD |
Public Use Sample of the 1920 Census Ruggles, Steven / University of Minnesota Twin Cities |
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NIH 1995 R01 HD |
Public Use Sample of the 1920 Census Ruggles, Steven / University of Minnesota Twin Cities |
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NIH 1994 R01 HD |
Public Use Sample of the 1920 Census Ruggles, Steven / University of Minnesota Twin Cities |
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NIH 1993 R01 HD |
Public Use Sample of the 1920 Census Ruggles, Steven / University of Minnesota Twin Cities |
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