CJCP     2012 14 (12):  893-897    ISSN: 1008-8830  CN: 43-1301/R Effect of pulmonary surfactant on Th1/Th2 balance in neonates with respiratory distress syndrome ZHAI Shu-Fen, LIU Cui-Qing, PING Li-Li, TIAN Bao-Li Department of Neonatology, Handan Central Hospital, Handan, Hebei 056001, China. shufenzhai@gmail.com Received: null  Revised: null  Online: null Supporting info