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type of the included literature.
| Type of the literature | No. of Articles | No. of Citations* | ||
|---|---|---|---|---|
| Grey literature | Conference proceedings | 2 | 9 (20%) | 191 |
| Preprints | 7 | |||
| Published | Article | 33 | 36 (80%) | 1401 |
| Book chapter | 3 | |||
| Total | 45 | 1592 | ||
→ Significant difference in the number of citations was observed between the two subgroups of the literature type (p = 0.0312, t test).
The number of citations as of June 9th, 2021.
