1. 
   Duncan Mechanism
   Separation of the placenta from the uterine wall beginning at the outermost edge of the placenta. Blood from the implantation site exits immediately through the vagina followed by the placenta, which descends sideways into the vagina.
   Found op http://www.pregnology.com/AZ/D/4
   
   
2. 
   Duncan mechanism
   Type: Term Pronunciation: dŭng′kăn Definitions: 1. passage of the placenta from the uterus with the rough side foremost.
   Found op http://www.medilexicon.com/medicaldictionary.php?t=53331
   
   
3. 
   Duncan's mechanism
   Passage of the placenta from the uterus with the rough side foremost. ... (05 Mar 2000) ...
   Found op http://www.mondofacto.com/facts/dictionary?Duncan's+mechanism
   
   

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