Abstract
Authors' response to Letter to the Editor: Alpuente, A. et al. (2026). Response to: Calcitonin gene-related peptide and headache: Comparison of two commonly used assay kits highlights the perils of measuring neuropeptides with enzyme-linked immunosorbent assays. Headache, 66(1), 21–23. https://doi.org/10.1111/head.70019, in relation to their article: Garelja, M. L., Rees, T. A., & Hay, D. L. (2025). Calcitonin gene-related peptide and headache: Comparison of two commonly used assay kits highlights the perils of measuring neuropeptides with enzyme-linked immunosorbent assays. Headache, 65(10), 1744-1753. https://doi.org/10.1111/head.15011.