16S rRNA-seq data :  tonsil and saliva
16S rRNA gene were amplified using 16S_V3_F (5- TCGTCGGCAGCGTCAGATGTGTATAAGAGACAGCCTACGGGNGG CWGCAG -3) and 16S_V4_R (5- GTCTCGTGGGCTCGGAGATGTGTATAAGAGACA GGACTACHVGGGTATCTAATCC -3) primers