主题：【新闻】Nature杂志发表各国科技影响力报告 -- rodger

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Figure 1 Comparing Europe with the United States. Ratio of the publications and citations of the 15 European Union countries in the comparator group (EU15) to the United States on ISI databases in 1993?C2002. The EU15 total contains some duplication because of papers jointly authored between countries in the EU group. Counts for papers and citations are totals for country (or group) for the stated year.