error rates for the 13 laboratories on samples containing barbiturates , amphetamines , methadone , cocaine , codeine , and morphine ranged from 11 % to 94 % , 19 % to 100 % , 0 % to 33 % , 0 % to 100 % , 0 % to 100 % , and 5 % to 100 % , respectively .
C0009214
codeine
C0026549
morphine