Table 1. Recovery from dried blood sample.
| 50 μL each | Protein (wt, μg) |
|---|---|
| Serum (wet) | 48.6 |
| Dried serum (No 514A paper) | 45.4 |
| Dried serum (Guthrie paper) | 45.7 |
| DBS (No 514A paper) | 39.1 |
| DBS (Guthrie paper) | 36.0 |
DBS: dried blood spot (whole blood)
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