Table 2.
The top 15 countries or regions contributing to publications in LPD.
| Rank | Country | Articles | Freq | SCP | MCP | MCP_Ratio |
|---|---|---|---|---|---|---|
| 1 | USA | 178 | 32.19 % | 162 | 16 | 8.99 % |
| 2 | Japan | 37 | 6.69 % | 35 | 2 | 5.41 % |
| 3 | United Kingdom | 33 | 5.97 % | 29 | 4 | 12.12 % |
| 4 | Germany | 30 | 5.43 % | 22 | 8 | 26.67 % |
| 5 | Canada | 25 | 4.52 % | 17 | 8 | 32.00 % |
| 6 | France | 24 | 4.34 % | 22 | 2 | 8.33 % |
| 7 | Turkey | 20 | 3.62 % | 18 | 2 | 10.00 % |
| 8 | China | 18 | 3.26 % | 15 | 3 | 16.67 % |
| 9 | Spain | 18 | 3.26 % | 15 | 3 | 16.67 % |
| 10 | India | 16 | 2.89 % | 15 | 1 | 6.25 % |
| 11 | Belgium | 15 | 2.71 % | 14 | 1 | 6.67 % |
| 12 | Finland | 13 | 2.35 % | 13 | 0 | 0.00 % |
| 13 | Italy | 13 | 2.35 % | 12 | 1 | 7.69 % |
| 14 | Hungary | 12 | 2.17 % | 10 | 2 | 16.67 % |
| 15 | Egypt | 10 | 1.81 % | 8 | 2 | 20.00 % |