title: Mass spectrometry of pethidine and pethidine metabolites. A study utilizing specifically deuterated pethidine.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D003903:Deuterium; D013058:Mass Spectrometry; D008614:Meperidine / Q000138:chemical synthesis*
chemical_list: D008614:Meperidine; D003903:Deuterium