Table 3.
Countries of origin of the top-cited articles.
| Rank | Countries | No. of articles |
|---|---|---|
| 1 | USA | 72 |
| 2 | Germany | 11 |
| 3 | England | 10 |
| 4 | Netherlands | 9 |
| 5 | Canada | 7 |
| 6 | Australia | 5 |
| 7 | Japan | 5 |
| 7 | Belgium | 4 |
| 9 | North Ireland | 4 |
| 10 | Sweden | 4 |
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