Fig. 4

Number of publications (top) and citations (bottom) per year. This figure shows that since 2008, the number of citations has increased to 200 per year. Before 2008, it was about 50 per year
Number of publications (top) and citations (bottom) per year. This figure shows that since 2008, the number of citations has increased to 200 per year. Before 2008, it was about 50 per year