sort by Rank | Alpha
| Possible Meanings | Rank |
| cellular/extracellular concentration ratio | ** |
| cellular/extracellular, concentration ratios | ** |
| chicken embryo fibroblasts | ** |
| collagen to elastin | ** |
| concentration/extracellular concentration ratio | ** |
| cost-effectiveness ratio | ** |
| Center of Excellence | * |
| Certificate of Eligibility | * |