Effect of different maintenance doses of caffeine citrate on ventilator weaning in very preterm infants with respiratory distress syndrome: a prospective randomized controlled trial
LI Xiao-Lan, CAI Yue-Ju, ZHANG Zhe, LI Jian, CHEN Xiao-Wen, SONG Yan-Yan, ZHOU Wei
CJCP . 2021, (11): 1097 -1102 .  DOI: 10.7499/j.issn.1008-8830.2107167