Screening For Drug Abuse -- See Drug testing Here are entered works on testing to identify the personal use or misuse of drugs. Works on testing the effectiveness or safety of drugs are entered under Drugs--Testing. Technical works on chemical analysis to determine the composition or presence of drugs are entered under Drugs--Analysis. --subdivision Drug testing under classes of persons, e.g. Police--Drug testing
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Screening Medical -- See Medical screening Here are entered works on mass examination of the population to detect the existence of a particular disease, as diabetes, tuberculosis, etc.
