Ms20TissueSubstitute.xml

<pumas>
  <element name="H"  Z="1"  A="1.008000"  I="19.2"  />
  <element name="C"  Z="6"  A="12.010700" I="78.0"  />
  <element name="N"  Z="7"  A="14.007000" I="82.0"  />
  <element name="O"  Z="8"  A="15.999000" I="95.0"  />
  <element name="Mg" Z="12" A="24.305000" I="156.0" />
  <element name="Cl" Z="17" A="35.453000" I="174.0" />

  <material name="Ms20TissueSubstitute" file="ms20_tissue_substitute.txt" density="1" I="75.1">
    <component name="H"  fraction="0.081192" />
    <component name="C"  fraction="0.583442" />
    <component name="N"  fraction="0.017798" />
    <component name="O"  fraction="0.186381" />
    <component name="Mg" fraction="0.130287" />
    <component name="Cl" fraction="0.0009" />
  </material>
</pumas>