title: Letter: Comments on the determination of diphenylhydantoin.
mesh_terms: D005069:Evaluation Studies as Topic; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007202:Indicators and Reagents; D008722:Methods; D010084:Oxidation-Reduction; D010672:Phenytoin / Q000097:blood*; D011196:Potassium Permanganate; D012972:Sodium Hydroxide
chemical_list: D007202:Indicators and Reagents; D011196:Potassium Permanganate; D012972:Sodium Hydroxide; D010672:Phenytoin