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.
| 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 |