Evaluation of Methodological Differences on MRC-5 AVA results Reported by the Different Contract Labs
| FBS Concentration | Clarification of Sample | Contract Lab A | Contract Lab B | Contract Lab C |
|---|---|---|---|---|
| 2% | Yes | Negative | Negative | Negative |
| No | Negative | Negative | Negative | |
| 5% | Yes | Negative | Negative | Negative |
| No | OOS* | Negative | Negative | |
| 10% | Yes | OOS* | Negative | Negative |
| No | OOS* | Negative | Negative |
↵* Atypical structures (foci artifact) observed.