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The use of phenol, or tricresol, or of toluene fails when applied to tetanus cultures, because of the resistance of the spores and the lability of the toxin. Sedimentation and centrifugalization are uncertain and unsafe even when a preservative is added. Berkefeld filtration with or without antiseptic is effective and safe only if extreme care is taken to prevent the spilling of the culture. One of us2 has devised an apparatus to facilitate safe separation of the culture from the oil used to exclude air from the medium.
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 2 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Top 10% | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
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