Xiao-Liang Yang1, Rong-Wei Ye. Show Affiliations » 1. Institute of Reproductive and Child Health, Peking University, Beijing, China.
Abstract
Mesh： See more » China/epidemiologyDisease OutbreaksFemaleHumansPregnancyPremature Birth/epidemiologyRisk Factors
Year: 2009 PMID： 19957607
Source DB: PubMed Journal: Zhonghua Liu Xing Bing Xue Za Zhi ISSN： 0254-6450