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Information on the citation networks of the 3 main groups.
| Main Cluster | Number of Publications | Number of Citation Links | Number of Citations Median (Range) | Number of Publications with ≥4 Citations | Number of Publications in the 100 Most Cited Publications |
|---|---|---|---|---|---|
| Group 1 | 158 | 604 | 0 (0–94) | 37 | 53 |
| Group 2 | 68 | 84 | 1 (0–7) | 10 | 32 |
| Group 3 | 60 | 87 | 0 (0–40) | 9 | 15 |
