ASSAY;
CLINICAL ARTICLE;
DIAGNOSIS;
DRUG ABUSE;
DRUG SCREENING;
HUMAN;
INTOXICATION;
NORMAL VALUE;
PRIORITY JOURNAL;
SCREENING;
URINALYSIS;
URINARY TRACT;
VALUE;
AMPHETAMINES;
BARBITURATES;
CENTERS FOR DISEASE CONTROL AND PREVENTION (U.S.);
COCAINE;
CODEINE;
DIAGNOSTIC ERRORS;
HUMAN;
LABORATORIES;
METHADONE;
MORPHINE;
PHARMACEUTICAL PREPARATIONS;
QUALITY CONTROL;
RESEARCH DESIGN;
STREET DRUGS;
SUPPORT, U.S. GOV'T, P.H.S.;
UNITED STATES;
Proficiency testing in clinical toxicology: Program sponsored by the Centers for Disease Control
Boone DJ, Guerrant GO, Knouse RW: Proficiency testing in clinical toxicology: Program sponsored by the Centers for Disease Control. J Anal Toxicol 1977;1:137.
Comparison of laboratory performance with blind and mail-distributed proficiency testing samples
LaMotte LC, Guerrant GO, Lewis DS, et al.: Comparison of laboratory performance with blind and mail-distributed proficiency testing samples. Public Health Rep 1977;92:554-560.
Laboratory evaluation and assistance efforts: Mailed, on-site, and blind proficiency testing surveys conducted by the Centers for Disease Control
Boone DJ, Hansen JH, Hearn TL, et al.: Laboratory evaluation and assistance efforts: Mailed, on-site, and blind proficiency testing surveys conducted by the Centers for Disease Control. Am J Public Health 1982;72:1364-1368.
Blind proficiency testing in urine drug screening: The need for an effective quality control program
Jain NC, Sneath TC, Budd RD: Blind proficiency testing in urine drug screening: The need for an effective quality control program. J Anal Toxicol 1977;1:142-146.
