CJCP     2021 23 (7):  671-676    ISSN: 1008-8830  CN: 43-1301/R Efficacy and safety of lactase additive in preterm infants with lactose intolerance: a prospective randomized controlled trial WANG Li, WANG Yi-Wen, TAN Jin-Tong, YAN Jie, WU Yan, WANG Xin-Meng, YANG Wen-Zhi, QIAN Ji-Hong Department of Neonatology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, China Received: 2021-02-07  Revised: 2021-05-30  Online: null Supporting info