CJCP     2011 13 (7):  573-576    ISSN: 1008-8830  CN: 43-1301/R Effects of maternal deficiency of folic acid during pregnancy on pulmonary development and SP-A expression in newborn rats QIAO Li-Xing, YU Zhang-Bin, HAN Shu-Ping, GU Xiao-Qi, CHEN Yu-Lin, SHA Li, JIN Jun-Xia, YAN Lu-Biao, GUO Xi-Rong Department of Pediatrics, Nanjing Maternal and Child Health Hospital Affiliated to Nanjing Medical University, Nanjing 210004, China. Email: xrguo@njmu.edu.cn Received: null  Revised: null  Online: null Supporting info