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Presence of a substance in the Third International Standard of Old Tuberculin that interacts negatively with the biological potency of the preparation
In the course of experiments designed as part of a biological assay of the Third International Standard of Old Tuberculin (OT) it was noticed that this preparation at the usual concentrations failed to elicit the expected concentration-response in persons on whom the von Pirquet was performed. Furth...
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| Main Authors: | , , , |
|---|---|
| Format: | Artigo |
| Sprog: | Inglês |
| Udgivet: |
1968
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| Fag: | |
| Online adgang: | https://ncbi.nlm.nih.gov/pmc/articles/PMC2554436/ https://ncbi.nlm.nih.gov/pubmed/5306126 |
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