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Hits 1197  Download times 1611  Received:April 07, 2010  
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DOI   10.11656/j.issn.1672-1519.2010.05.02
Key Words   
Author NameAffiliation
刘志良 深圳市妇幼保健院, 深圳, 518028 
滕辉 深圳市妇幼保健院, 深圳, 518028 
肖道梅 深圳市妇幼保健院, 深圳, 518028 
刘昱磊 深圳市妇幼保健院, 深圳, 518028 
王双魁 深圳市妇幼保健院, 深圳, 518028 
Abstract
    

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