title: [Studies on drug metabolism by use of isotopes. XIX. On the amounts of radioisotopes in stable isotopes labeled compounds (author's transl)].
mesh_terms: D006801:Humans; D007554:Isotopes / Q000032:analysis*; D011868:Radioisotopes / Q000032:analysis*
chemical_list: D007554:Isotopes; D011868:Radioisotopes