title: Simultaneous measurement of 24Na and 42K in biological systems: a simplified technique.
mesh_terms: D001823:Body Composition; D006801:Humans; D007454:Iodides; D008722:Methods; D011194:Potassium Isotopes / Q000032:analysis*; D011868:Radioisotopes / Q000032:analysis*; D012588:Scintillation Counting; D012975:Sodium Isotopes / Q000032:analysis*
chemical_list: D007454:Iodides; D011194:Potassium Isotopes; D011868:Radioisotopes; D012975:Sodium Isotopes