Immunologically mediated adverse reactions to medicinal substances used legally or illegally.
Allergy, Drug,Hypersensitivity, Drug,Drug Allergy,Allergies, Drug,Drug Allergies,Drug Hypersensitivities,Hypersensitivities, Drug
D005188
False Negative Reactions
Negative test results in subjects who possess the attribute for which the test is conducted. The labeling of diseased persons as healthy when screening in the detection of disease. (Last, A Dictionary of Epidemiology, 2d ed)