All

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 D04 Polycyclic Hydrocarbons D011083 +
  D04.808 Steroids D013256 +
   D04.808.247 Cholestanes D002776 +
    D04.808.247.222 Cholestenes D002782 +
      D04.808.247.222.159 Cholecalciferol D002762 +
      D04.808.247.222.222 Cholestadienes D002774 +
      D04.808.247.222.265 Cholestenones D002783 +
      D04.808.247.222.284 Cholesterol D002784 
      D04.808.247.222.387 Dihydrotachysterol D004097 
      D04.808.247.222.474 Ergocalciferols D004872 +
      D04.808.247.222.537 Ergosterol D004875 
      D04.808.247.222.857 Sitosterols D012855