title: lung microbiome from sputum for 96A_92_2.2_Exacerbation
design: DNA sequencing of 16S rRNA V3-V5 region using primers 517F (5’-GCCAGCAGCCGCGGTAA-3’) and the reverse primer (5’-CTTGTGCGGGYCCCCGTCAAT-3’) with barcode TCTACGTAGC for subject 92 at a Exacerbation visit on 12_16_09