Figure 7.

Generation of sterile CSC. Smoke from a burning cigarette was passed through a 0.9% saline solution. The CSC-rich solution was then sterilized by filtration through 0.22-um sterile filters and later stored at -20°C until use.

Semlali et al. BMC Microbiology 2014 14:61   doi:10.1186/1471-2180-14-61
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