Mendelian randomization applied to migraine research: Opportunities and challenges.

Abstract excerpt

Observational studies have linked migraine to a wide range of risk factors and diseases, although the causality of these associations is uncertain. Mendelian randomization (MR) is an analytic paradigm that exploits germline genetic variants as natural experiments, providing a framework for causal inference from observational data. In this narrative review, we summarize the core principles and assumptions of MR...

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