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a Year to year correlations for impact scores per journal class in Biochemistry and molecular biology, 2004. b Year to year correlations for impact scores per journal class in Economics, 2004. c Year to year correlations for impact scores per journal class in Information and library science, 2004. d Year to year correlations for impact scores per journal class in Mathematics, 2004. e Year to year correlations for impact scores per journal class in Pathology, 2004
