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© May 2005 Lorentz JÄNTSCHI && Sorana Daniela BOLBOACĂ

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 G03 Environment and Public Health D004778 +
  G03.230 Environment D004777 +
   G03.230.300 Meteorological Factors D008685 +
    G03.230.300.100 Atmosphere D001272 +
     G03.230.300.100.725 Weather D014887 +
      G03.230.300.100.725.710 Temperature D013696 +
       G03.230.300.100.725.710.300 Cold D003080 


 H01 Natural Sciences D010811 +
  H01.671 Physics D010825 +
   H01.671.868 Temperature D013696 +
    H01.671.868.272 Cold D003080 
      H01.671.868.272.437 Freezing D005615