1. 
   BTA
   British Thyroid Association
   Found op http://www.encyclo.co.uk/local/20895
   
   
2. 
   BTA
   British Tinnitus Association
   Found op http://www.encyclo.co.uk/local/20895
   
   
3. 
   BTA
   But Then Again -or- Before The Attacks
   Found op http://www.netlingo.com/acronyms.php
   
   
4. 
   BTA
   Bogie wagon for carrying pipes
   Found op http://www.scot-rail.co.uk/page/Glossary
   
   
5. 
   bta
   1) British thyroid association
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/bta/1
   
   

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