title: A comparison of radioimmunoassay with spectrophotometry for the determination of plasma diphenylhydantoin concentrations.
mesh_terms: D005069:Evaluation Studies as Topic; D006801:Humans; D010672:Phenytoin / Q000097:blood*; D011863:Radioimmunoassay / Q000379:methods; D013053:Spectrophotometry / Q000379:methods
chemical_list: D010672:Phenytoin