CJCP     2020 22 (3):  231-237    ISSN: 1008-8830  CN: 43-1301/R Risk factors for minimally invasive surfactant administration failure in preterm infants with respiratory distress syndrome LIU Hui-Qiang1, TONG Xiao-Mei1, HAN Tong-Yan1, ZHANG Hui1, GUO Ming2, ZHANG Xue-Feng2, LIU Xin-Jian3, ZHANG Xiang3, ZHANG Ming-Tao3, LIU Fang4, BAO Li-Sha4, ZHENG Jun5, TIAN Xiu-Ying5, GAO Qi5, ZHANG Wan-Xian5, DUAN Yang6, SUN Fu-Qiang6, GUO Wei7, LI Ling7, XIAO Min8, LIU Wei-Li8, JIANG Rui8 Department of Pediatrics, Peking University Third Hospital, Beijing 100191, China Received: 2019-10-23  Revised: 2020-02-20  Online: null Supporting info