Number of articles deleted by data set because they were missing a DOI
| Data group . | No. of articles deleted . |
|---|---|
| Altmetric.com gold OA articles | 62 |
| Altmetric.com green/hybrid articles | 378 |
| Altmetric.com paywalled articles | 818 |
| Web of Science gold OA articles | 12,841 |
| Web of Science green/hybrid articles | 1,114 |
| Web of Science paywalled articles | 16,899 |
| Data group . | No. of articles deleted . |
|---|---|
| Altmetric.com gold OA articles | 62 |
| Altmetric.com green/hybrid articles | 378 |
| Altmetric.com paywalled articles | 818 |
| Web of Science gold OA articles | 12,841 |
| Web of Science green/hybrid articles | 1,114 |
| Web of Science paywalled articles | 16,899 |