the free fractions of diazepam , imipramine , lidocaine , meperidine , phenytoin , propranolol , and salicylic acid were determined in the serum of seven burn patients ( 25 % to 80 % of their skin surface burned ) about one week after the burn and in three of the patients at about four weeks following the injury .
C0023660
lidocaine
C0006434
burn