CJCP     2023 25 (9):  953-958    ISSN: 1008-8830  CN: 43-1301/R Clinical characteristics and pathogens of infancy lower respiratory tract infections in infants with bronchopulmonary dysplasia LIU Xuan-Cheng, GU Ming-Xiao, SUN Meng, JIANG Qian-Nan Infant Department, Qingdao Women and Children's Hospital, Qingdao, Shandong 266034, China Received: 2023-04-21  Revised: null  Online: null Supporting info null