lung microbiome from sputum for 13B_56_3.1_Exacerbation
DNA sequencing of 16S rRNA V3-V5 region using primers 517F (5’-GCCAGCAGCCGCGGTAA-3’) and the reverse primer (5’-CTTGTGCGGGYCCCCGTCAAT-3’) with barcode ACGACTACAG for subject 56 at a Exacerbation visit on 12_09_09