All

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 D04 Polycyclic Hydrocarbons D011083 +
  D04.615 Polycyclic Hydrocarbons, Aromatic D011084 +
   D04.615.638 Naphthalenes D009281 +
    D04.615.638.960 Tetrahydronaphthalenes D013764 +
     D04.615.638.960.675 Podophyllotoxin D011034 +
      D04.615.638.960.675.250 Etoposide D005047 
 D09 Carbohydrates and Hypoglycemic Agents D002242 +
  D09.203 Carbohydrates D002241 +
   D09.203.408 Glycosides D006027 +
    D09.203.408.348 Glucosides D005960 +
     D09.203.408.348.275 Etoposide D005047