All

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 D02 Organic Chemicals D009930 +
  D02.092 Amines D000588 +
   D02.092.471 Ethylamines D005021 +
    D02.092.471.683 Phenethylamines D010627 +
     D02.092.471.683.152 Amphetamines D000662 +
      D02.092.471.683.152.110 Amphetamine D000661 +
        D02.092.471.683.152.110.200 Dextroamphetamine D003913