CJCP     2011 13 (4):  326-330    ISSN: 1008-8830  CN: 43-1301/R Effect of maternal vitamin D deficiency on lung morphogenesis and platelet-derived growth factor-A expression in rat offspring GU Hai-Yan, ZHAO De-Yu, WANG Quan Department of Respiration, Nanjing Children's Hospital, Nanjing Medical University, Nanjing 210008, China. Email: zhaodeyu98@126.com Received: null  Revised: null  Online: null Supporting info