title: Gas proportional counting compared with liquid scintillation counting for assaying tritium in biological materials.
mesh_terms: D000818:Animals; D005243:Feces; D005492:Folic Acid; D007422:Intestines; D008353:Mannitol; D010042:Ouabain; D011874:Radiometry; D051381:Rats; D012588:Scintillation Counting; D014316:Tritium / Q000032:analysis*; D014508:Urea; D014556:Urine
chemical_list: D014316:Tritium; D008353:Mannitol; D010042:Ouabain; D014508:Urea; D005492:Folic Acid