DNA, Bacterial bacterial DNA 12 genetics 12 microbiology 9 nonhuman 9 Article 8 Humans 8 human 8 controlled study 7 isolation and purification 6 bacterial gene 5 DNA sequence 4 RNA 16S 4 RNA, Ribosomal, 16S 4 bacterial protein 4 sensitivity and specificity 4 Bacterial Proteins 3 Genome, Bacterial 3 Malaysia 3 Male 3 Middle Aged 3 Polymerase Chain Reaction 3 Sensitivity and Specificity 3 Sequence Analysis, DNA 3 bacterial genome 3 bacterial strain 3 classification 3 male 3 middle aged 3 molecular diagnosis 3