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Number and proportion of media formulations within the clusters.
| Cluster number | Response | Formulations (n) | Percentage (%) |
| 1 | Expansion | 43 | 82.69 |
| Viability | 9 | 17.31 | |
| 2 | Expansion | 2 | 8.00 |
| Viability | 23 | 92.00 | |
| 3 | Expansion | 22 | 46.81 |
| Viability | 25 | 53.19 | |
| 4 | Expansion | 51 | 76.12 |
| Viability | 16 | 23.88 | |
| 5 | Expansion | 41 | 63.08 |
| Viability | 24 | 36.92 | |
| 6 | Expansion | 1 | 1.56 |
| Viability | 63 | 98.44 |
