Comment by Hanfeng Ji

Coauthor of a 2026 Mendelian randomization study on dietary intake and allergic disease causality.
Unlike observational studies prone to confounding and reverse causality, Mendelian randomization uses genetic variants as instrumental variables for stronger causal inference.
Disputed (Mar 6, 2026)
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Disputed The sentence appears verbatim in the PubMed/PMC abstract for the article published on 2026-03-06, and the source URL corresponds to that paper. However, the paper lists multiple individual authors (including Hanfeng Ji) rather than presenting this as a quote attributable to Hanfeng Ji alone, so this platform cannot verify it as a single-author quote. ([pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/41790686/?utm_source=openai)) · YouCongress gpt-5.4-2026-03-05 · 1h ago
replying to Hanfeng Ji