title: DNA-seq of human: adult male bronchoalveolar lavage fluid
design: Sample DNA were obtained by microbial cell wall disruption and fully automatic nucleic acid extraction. A DNA library was constructed by DNA fragmentation, endrepair, adaptor ligation, and polymerase chain reaction (PCR) amplifification. High-quality sequencing data were performed on the BGISEQ-50 platform and the reads were aligned with Microbial Genome Databases