title: Salivary drug measurement: a cautionary tale.
mesh_terms: D002951:Citrates / Q000494:pharmacology; D019343:Citric Acid; D005013:Ethosuximide / Q000032:analysis*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007124:Immunoenzyme Techniques; D010672:Phenytoin / Q000032:analysis*; D012463:Saliva / Q000032:analysis* / Q000378:metabolism
chemical_list: D002951:Citrates; D019343:Citric Acid; D005013:Ethosuximide; D010672:Phenytoin