Table 2.
Country | n |
---|---|
United States* | 39 |
United Kingdom* | 16 |
Canada | 6 |
The Netherlands | 6 |
China | 2 |
Taiwan | 2 |
Australia | 1 |
Germany | 1 |
Ireland | 1 |
New Zealand | 1 |
Singapore | 1 |
South Korea | 1 |
Turkey | 1 |
Five studies were performed in both the US and the UK
We were not able to ascertain where the study was performed in 3 cases.