All

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 D01 Inorganic Chemicals D007287 +
  D01.268 Elements D004602 +
   D01.268.150 Carbon D002244 +
    D01.268.150.250 Fullerenes D037741 +
     D01.268.150.250.500 Nanotubes, Carbon D037742 
 J01 Technology, Industry, and Agriculture D013676 +
  J01.637 Manufactured Materials D008420 +
   J01.637.524 Nanotubes D043942 +
    J01.637.524.500 Nanotubes, Carbon D037742