CJCP     2018 20 (6):  438-443    ISSN: 1008-8830  CN: 43-1301/R Follow-up observation of catch-up growth of preterm infants after discharge and risk factors for extrauterine growth retardation GAO Xiao-Yan, FENG Lin, XU Jing, PAN Xin-Nian Department of Neonatology, Maternal and Child Health Care Hospital of Guangxi Zhuang Autonomous Region, Nanning 530000, China Received: 2018-03-13  Revised: 2018-04-16  Online: null Supporting info