Table 1 Descriptive information about the included studies鈥� origins (continent and country)
Continent and country | No. of studies |
|---|---|
Europe | 听 |
France | 2 |
Germany | 1 |
Netherland | 1 |
Norway | 1 |
Scotland | 3 |
Spain | 5 |
Sweden | 2 |
England | 13 |
Africa | 听 |
South Africa | 1 |
Asia | 听 |
China | 3 |
Israel | 1 |
South Korea (ROK) | 1 |
North America | 听 |
Canada | 6 |
Mexico | 1 |
USA | 9 |
South America | 听 |
Brazil | 3 |
Oceania | 听 |
Australia | 9 |
More than one country (1 of these studies contained only European countries, and 1 contained only US and Australian countries) | 10 |