All

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 D25 Biomedical and Dental Materials D001697 +
  D25.264 Ceramics D002516 
    D25.264.377 Dental Porcelain D003776 
 J01 Technology, Industry, and Agriculture D013676 +
  J01.637 Manufactured Materials D008420 +
   J01.637.153 Ceramics D002516