DOI:
        10.1055/s-00000009
      
      
        American Journal of Perinatology
      
      
        
          
            Ausgabe 06 ·
           Volume 14 ·
           Juli 1997
            
          
           DOI: 10.1055/s-002-7207 
          
          
          
  
    
      
    
  
  
        
        
  
  
    
  
  
  
    
  
  
  
    
  
  
  
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
  
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
      
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
        
          
            
              
              
              
                
                  
                    
                    
                      
                          
                          
                            
                            ORIGINAL ARTICLE
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                            
                          
                          
                          
                          
  
  
    
      
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              Ghidini, Alessandro; 
              
            
          
            
              
              Salafia, Carolyn M.; 
              
            
          
            
              
              Minior, Victoria K.: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
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              Bruck, Lance R.; 
              
            
          
            
              
              Sherer, David M.: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
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              Rabinerson, David; 
              
            
          
            
              
              Gruber, Arieh; 
              
            
          
            
              
              Kaplan, Boris; 
              
            
          
            
              
              Lurie, Samuel; 
              
            
          
            
              
              Peled, Yoav; 
              
            
          
            
              
              Neri, Alexander: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
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              Ramirez, Mildred M.; 
              
            
          
            
              
              Burkhead, James M.; 
              
            
          
            
              
              Turrentine, Mark A.: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
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              Vergani, Patrizia; 
              
            
          
            
              
              Locatelli, Anna; 
              
            
          
            
              
              Strobelt, Nicola; 
              
            
          
            
              
              Mariani, Silvana; 
              
            
          
            
              
              Cavallone, Maria; 
              
            
          
            
              
              Arosio, Paolo; 
              
            
          
            
              
              Ghidini, Alessandro: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
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              Connolly, Anna Marie; 
              
            
          
            
              
              Katz, Vern L.; 
              
            
          
            
              
              Bash, Karen L.; 
              
            
          
            
              
              McMahon, Michael J.; 
              
            
          
            
              
              Hansen, Wendy F.: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
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              Sherer, David M.; 
              
            
          
            
              
              Spong, Catherine Y.; 
              
            
          
            
              
              Salafia, Carolyn M.: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
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              Silverman, Neil S.; 
              
            
          
            
              
              Rohner, Donna M.; 
              
            
          
            
              
              Turner, Barbara J.: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        347
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
          
          
            
              
              Martell, Robert J.; 
              
            
          
            
              
              Soder, Christian M.: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
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              Kuint, Jacob; 
              
            
          
            
              
              Horowitz, Zeev; 
              
            
          
            
              
              Kugel, Chen; 
              
            
          
            
              
              Toper, Leon; 
              
            
          
            
              
              Birenbaum, Emanuel; 
              
            
          
            
              
              Linder, Nehama: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
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              Parilla, Barbara V.; 
              
            
          
            
              
              Tamura, Ralph K.; 
              
            
          
            
              
              Ginsberg, Norman A.: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
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              Garmel, Sara H.; 
              
            
          
            
              
              Chelmow, David; 
              
            
          
            
              
              Sha, Sandra J.; 
              
            
          
            
              
              Roan, James T.; 
              
            
          
            
              
              D'Alton, Mary E.: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
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              Straussberg, R.; 
              
            
          
            
              
              Hart, J.; 
              
            
          
            
              
              Alexandrova, S.; 
              
            
          
            
              
              Sirota, L.; 
              
            
          
            
              
              Djaldetti, M.; 
              
            
          
            
              
              Bessler, H.: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
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              Vik, Torstein; 
              
            
          
            
              
              Vatten, Lars; 
              
            
          
            
              
              Markestad, Trond; 
              
            
          
            
              
              Jacobsen, Geir; 
              
            
          
            
              
              Bakketeig, Leiv S.: