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Countries of the publications (n = 17).
| Study from (Nation) | N |
|---|---|
| Spain | 10 |
| United States of America | 7 |
| Turkey | 4 |
| China | 3 |
| Germany | 2 |
| Saudi Arabia | 2 |
| Jamaica | 1 |
| Canada | 1 |
| Lithuania | 1 |
| Ireland | 1 |
| Singapore | 1 |
| Ecuador | 1 |
| Serbia | 1 |
| Taiwan | 1 |
| Belgium | 1 |
| Hong Kong | 1 |
| Finland | 1 |
| United Arab | 1 |
| Total = 17 Countries | Total of Papers = 40 |
