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Table 1 Number of authors contacted and provided data by country

From: Impact of contacting study authors to obtain additional data for systematic reviews: diagnostic accuracy studies for hepatic fibrosis

Country Authors contacted Provided data
Austria 1 0
Belgium 2 1
Brazil 3 1
Egypt 7 2
France 12 5
Germany 2 1
Israel 2 1
Italy 6 3
Japan 2 1
Korea 2 2
Luxembourg 1 1
Mexico 1 0
The Netherlands 1 1
Pakistan 1 0
Romania 4 3
Spain 1 0
Sweden 1 0
Taiwan 2 1
Tunisia 1 0
Turkey 2 1
United Kingdom 5 0
United States 7 4
Total 66 28