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DGGE analysis of 16S rDNA/rRNA in the cellular and liquid phases of saliva. M, species-specific DGGE standard markers (21); sample #1-9 (sample group 1), 16S rDNA from cellular phase of saliva; sample #11-19 (sample group 2), 16S rDNA/rRNA from liquid phase of saliva; sample #21-29 (sample group 3), 16S rDNA from liquid phase of saliva. See Materials and Methods for experimental procedures and the description of the sample groups and analysis results.
