Änderungen

123 Bytes hinzugefügt ,  19:07, 20. Aug. 2009
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*http://content.nejm.org/cgi/content/full/360/19/1981
 
*http://content.nejm.org/cgi/content/full/360/19/1981
 
* http://jama.ama-assn.org/cgi/content/full/298/18/2155 (Historical Comparisons of Morbidity and Mortality for Vaccine-Preventable Diseases in the United States)
 
* http://jama.ama-assn.org/cgi/content/full/298/18/2155 (Historical Comparisons of Morbidity and Mortality for Vaccine-Preventable Diseases in the United States)
 +
*http://www.faz.net/s/Rub7F74ED2FDF2B439794CC2D664921E7FF/Doc~E2974EE8E09474E358703A2CD5BEC0A72~ATpl~Ecommon~Scontent.html
    
==Quellennachweise==
 
==Quellennachweise==
8.902

Bearbeitungen