Some causes of ineffectiveness of diphenylhydantoin.
D000368:Aged; D001769:Blood; D004827:Epilepsy / Q000188:drug therapy*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010672:Phenytoin / Q000008:administration & dosage* / Q000378:metabolism*
D010672:Phenytoin