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Table 3 Percentage of national and international papers in a U.S. and a European journal on "air pollution or particles and mortality" published in 1999–2000.

From: Collaborative research: Accomplishments & potential

Type of paper Epidemiology
N papers (%)
N citations
Eur Respir J
N papers (%)
N citations
National 17 (71)
53
10 (53)
18
(US) 9 (38)
68
1 (5)
6
(other) 8 (33)
37
9 (48)
18
International 7 (29)
54
9 (48)
23
Inter-European 1 (4)
16
6 (32)
25