All

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 D01 Inorganic Chemicals D007287 +
  D01.268 Elements D004602 +
   D01.268.271 Elements, Radioactive D004603 +
    D01.268.271.110 Astatine D001246 
 D01 Inorganic Chemicals D007287 +
  D01.268 Elements D004602 +
   D01.268.380 Halogens D006219 +
    D01.268.380.075 Astatine D001246