Retrospective study of preterm infants with respiratory distress syndrome during 1998-2012.
HAN Tong-yan, TONG Xiao-mei, PIAO Mei-hua, LI Zai-ling, CUI Yun-pu, TANG Ya-nan, CHANG Yan-mei.
journal1 . 2014, (4): 416 -419 .  DOI: 10.11852/zgetbjzz2014-22-04-25