title: Letter: Comments on the determination of diphenylhydantoin.
mesh_terms: D006801:Humans; D007202:Indicators and Reagents; D008722:Methods; D008832:Microchemistry; D010672:Phenytoin / Q000032:analysis* / Q000097:blood; D011196:Potassium Permanganate; D013053:Spectrophotometry
chemical_list: D007202:Indicators and Reagents; D011196:Potassium Permanganate; D010672:Phenytoin