title: Determination of the electronic density and the average atomic number of tissues in man by gamma-ray attenuation.
mesh_terms: D001842:Bone and Bones; D004583:Electrons; D005720:Gamma Rays; D006801:Humans; D009132:Muscles; D011827:Radiation; D011853:Radiobiology; D011874:Radiometry / Q000379:methods