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. 2011 Aug 5;6(8):e22041. doi: 10.1371/journal.pone.0022041

Figure 2. Map of Finland with the study areas marked by gray circles.

Figure 2

The study areas were: 1) Vantaanjoki, 2) Karjaanjoki, 3) Kokemäenjoki, 4) Upper Kymijoki, and 5) Koutajoki. On the right, small maps show geographical positions of each lake in the same study areas.