Figure 7.
The horizontal axis lists Number of Papers from 0 to 4.5, and the vertical axis lists Countries. U S A has 1 paper. U A E has 1. U K has 2. Turkey has 4. Sweden has 3. South African has 1. Peru has 1. Norway has 1. Nigeria has 1. Morocco has 1. Malaysia has 2. Italy has 2. Ireland has 2. Iran has 1. Indonesia has 1. India has 4. Combined-Brazil and America has 2. Combination of Europe countries has 1. Brazil has 3. Belgium has 1. Combined-Belgium, Germany and Hungary has 1.Distribution of review articles by country
Source: Authors’ own work