Date of query: February 11th, 2026.
Countries’ Scientific Production
| Country | Freq |
|---|
| PORTUGAL | 58 |
| GERMANY | 20 |
| ITALY | 19 |
| CHINA | 10 |
| NETHERLANDS | 9 |
| NORWAY | 6 |
| DENMARK | 5 |
| FINLAND | 4 |
| FRANCE | 4 |
| INDIA | 4 |
| SOUTH KOREA | 4 |
| SPAIN | 4 |
| USA | 4 |
| POLAND | 3 |
| ROMANIA | 3 |
| GREECE | 2 |
| SWITZERLAND | 2 |
| UK | 2 |
| BULGARIA | 1 |
| LATVIA | 1 |
| LITHUANIA | 1 |
| MOROCCO | 1 |
