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| Component | RPMI 1640 | Normal Serum Levels | Custom Media |
|---|---|---|---|
| Methionine (μM) | 101 | 10-42 | 33 |
| Choline (μM) | 21.4 | 7-20 | 10 |
| Folic acid (ng/ml) | 1000 | 3-17.5 | 7 |
| B6 (μg/L) | 1000 | 5-50 | 22 |
| B2 (μg/L) | 200 | 3-15 | 6 |
| B12 (pg/ml) | 5000 | 211-911 | 350 |
| Zn (μg/ml) | 0 | 0.55-1.5 | 0.5 |
| Homocysteine (μM) | 0 | 5-15 | 9 |
