Historical Aspects of Drugs-of-Abuse Testing in the United States -- Specimens for Drugs-of-Abuse Testing -- Drug-Testing Technologies and Applications -- The Use of Nitrocellulose Membranes in Lateral-Flow Assays -- Antibody-Label Conjugates in Lateral-Flow Assays -- Lateral-Flow Assays -- Oral-Fluid Drug Testing Using the Intercept® Device -- Dräger DrugTest® -- On-Site Oral-Fluid Drug Tes…