Supplementary Information for the paper: Biotin interference can cause false-negative specific IgE results in patients with anaphylaxis

This file includes Supplementary methods for a Clinical Communication"Biotin interference can cause false-negative specific IgE results in patients with anaphylaxis" by Nils Scheib et al. (published in the Journal of Allergy and Clinical Immunology: In Practice, 2022, refer to https://www.sciencedirect.com/science/article/pii/S2213219822005311).