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. 2020 Feb 25;77(6):357–367. doi: 10.1136/oemed-2019-105880

Figure 2.

Figure 2

Frequency strata showing number of reviewed and included articles on occupational exposure to pesticides and various health outcomes published between 1993 to 2017 per country serving as study location. Numbers in brackets represent the number of different study locations (countries) for each article frequency strata. Articles reporting multicentre studies are in the plot (only) counted multiple times according to the number of individual countries serving as study location in the article.