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Ultrasound Evidence of Sexual Difference in Fetal Size in First Trimester

 

作者: JAN,  

 

期刊: Obstetrical & Gynecological Survey  (OVID Available online 1981)
卷期: Volume 36, issue 6  

页码: 305-306

 

ISSN:0029-7828

 

年代: 1981

 

出版商: OVID

 

数据来源: OVID

 

 

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