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Formulations and sources of protamines used in this article.
| Protamine type | Source | Salt |
|---|---|---|
| Clinical 5000 | Salmon | Chloride |
| Grade II | Salmon | Sulfate |
| Grade III | Herring | Sulfate |
| Grade IV | Salmon | Not indicated |
| Grade V | Salmon | Chloride |
| Grade X | Salmon | Sulfate |
| Grade USP | Salmon | Sulfate |
| Grade for Biochemistry | Not indicated | Sulfate |
