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Level 1
  
V - Various
  
V01 - AllergensV03 - All other therapeutic productsV04 - Diagnostic agentsV06 - General nutrientsV07 - All other non-therapeutic productsV08 - Contrast mediaV09 - Diagnostic radiopharmaceuticalsV10 - Therapeutic radiopharmaceuticalsV20 - Surgical dressings
  
 
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