title: 16S:sputum
design: Sequencing libraries were generated using TruSeq DNA PCR-Free Sample Preparation Kit (Illumina, USA) following the manufacturer's instructions. The quality of libraries was determined using the Qubit Fluorometer (Thermo Scientific, USA). The highquality libraries were sequenced on the HiSeq2500 platform and 265 bp paired-end raw reads were generated at Novogene
library_name: COPD_C24