Limited (search only) 1968-74
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Limited (search only) 1968-1975
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University of Michigan
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Limited (search only) 1975-79
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University of California
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Limited (search only) 1976
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University of Michigan
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Limited (search only) 1979
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The Ohio State University
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Limited (search only) 1981
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University of California
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Limited (search only) 1984
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The Ohio State University
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Limited (search only) 1984-85
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University of California
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Limited (search only) 1985
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The Ohio State University
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Limited (search only) 1986
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University of California
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Limited (search only) 1987
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University of California
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Limited (search only) 1987-1991
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University of Michigan
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Limited (search only) 1988
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Limited (search only) 1989
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Limited (search only) 1990
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Limited (search only) 1991
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Limited (search only) 1991
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University of Minnesota
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Limited (search only) 1992
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University of California
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Limited (search only) 1993
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Limited (search only) 1994
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University of California
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University of California
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Limited (search only) 1997
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University of Minnesota
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Limited (search only) 1999 1999
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The Ohio State University
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Limited (search only) 2000
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University of California
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Limited (search only) 2001 2001
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The Ohio State University
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