CJCP     2015 17 (9):  898-902    ISSN: 1008-8830  CN: 43-1301/R A case-control study on association between OAS1 polymorphism and susceptibility to spontaneous preterm birth and preterm premature rupture of membranes YANG Xiao1, ZHANG Xiao-Ai2, WU Zhi-Hao3, PENG Wei1, ZHU Li-Na1, WANG Yan1 Developmental Biology Laboratory, Baiyi Children's Hospital Affiliated to Beijing Military General Hospital, Beijing 100700, China Received: 2015-05-28  Revised: 2015-07-20  Online: null Supporting info null