1. 
   AAST
   American Association for the Surgery of Trauma
   Found op http://www.encyclo.co.uk/local/20895
   
   
2. 
   AAST
   American Association of Sleep Technologists [Formerly: Association of Polysomnographic Technologists]
   Found op http://www.encyclo.co.uk/local/20895
   
   
3. 
   AAST
   aeromedical evacuation administrative support team
   Found op http://en.wikipedia.org/wiki/List_of_U.S._government_and_military_acronyms
   
   
4. 
   aast
   1) American association for the surgery of trauma
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/aast/1
   
   

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