【摘 要】
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<正>Objective:To study the association of environmental adverse factors with early embryo loss,and explore the possible risk factors in daily life. Methods:A qu
【机 构】
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DepartmentofObstetrics&,Gynecology,GeneralHospitalofChineseArmedPolice
【基金项目】
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Nature Science Fund of Tianjin (07JCZDJC07400)