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. 2022 Apr 12;10(4):714. doi: 10.3390/healthcare10040714

Figure 1.

Figure 1

Countries of origin of the 142 papers included in our literature review, color-coded by the number of contributions on a World Map (https://mapchart.net/world.html, free online tool, accessed on 5 April 2022). In detail, contributions came from 23 countries, with information per country on the total number of papers (in brackets separate counts for quantitative studies/qualitative studies/topical reviews, editorials, or opinion papers): Australia (N = 1: 1/0/0), Belgium (N = 2: 1/1/0), Canada (N = 7: 2/0/5), Chile (N = 1: 1/0/0), China (N = 7: 4/2/1), Denmark (N = 1: 0/0/1), France (N = 5: 2/0/3), India (N = 1: 0/0/1), Iran (N = 3: 1/0/2), Ireland (N = 1: 0/1/0), Israel (N = 2: 1/0/1), Italy (N = 17: 9/2/5), Japan (N = 4: 3/0/1), the Philippines (N = 1: 0/1/0), Portugal (N = 1: 1/0/0), Saudi Arabia (N = 3: 3/0/0), Singapore (N = 2: 0/0/2), Spain (N = 3: 3/0/0), Turkey (N = 9: 4/3/2), UK (N = 19: 6/5/8), USA (N = 53: 21/4/27), and Zimbabwe (N = 1: 0/1/0). Note: The map data are for 145 papers, including 3 further papers (one from Peru, one from the USA, and one from Italy) which were excluded from the review despite being topically relevant, either because they were written in a different language, or because we had no access to the full text.