title: [Studies on the analysis of drugs by use of isotopes. IV. Reverse dilution analysis of the metabolites of 14C-ephedrine].
mesh_terms: D000818:Animals; D002247:Carbon Isotopes; D002854:Chromatography, Paper; D004809:Ephedrine / Q000652:urine*; D007201:Indicator Dilution Techniques; D051381:Rats
chemical_list: D002247:Carbon Isotopes; D004809:Ephedrine