Polybacterial infection in patients with stable bronchiectasis revealed by metagenomic next-generation sequencing. Issue 4 (April 2023) - Lei, Cheng; Ge, Hu; Ding, Shuizi; Zhou, Xianglin; Yang, Binyi; Yang, Danhui; Wang, Rongchun; Guo, Ting; Yu, Yan; Luo, Hong