TABLE 1.
Statistics of popular keywords on the research of ethical concerns of cerebral organoids
| No | Count | Centrality | Year a | PageRank index | Keywords |
|---|---|---|---|---|---|
| 1 | 10 | 0.67 | 2017 | 2.7 | Model |
| 2 | 7 | 0.52 | 2019 | 1.91 | Stem cell |
| 3 | 6 | 0.42 | 2003 | 2.38 | Ethics |
| 4 | 6 | 0.16 | 2017 | 1.75 | Pluripotent stem cell |
| 5 | 4 | 0.26 | 2019 | 2.61 | Expression |
| 6 | 4 | 0.12 | 2018 | 1.51 | Human brain development |
| 7 | 4 | 0.33 | 2003 | 3.27 | Differentiation |
| 8 | 4 | 0.14 | 2017 | 1.61 | Cerebral organoid |
| 9 | 3 | 0.08 | 2017 | 1.49 | Progenitor cell |
| 10 | 3 | 0.14 | 2019 | 0.99 | Cell |
a
The year of first appearance.