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| Technical and methodological errors (reasons for false-positive and false-negative results) |
| Poor quality of reagents (e.g., allergen extracts or their extraction, coupling and stability) laboratory errors |
| Interpretation errors (reasons for clinically irrelevant results) |
| Strongly increased total IgE with multiple sensitizations high sensitivity of detection cross-reactive IgE antibodies |
IgE = Immunoglobulin E.
