TY - RPRT TI - No More Free Lunch: Challenges to Mendelian Randomization Due to Sample Selection and Complex Methods. AU - Tianyuan Lu AU - Wenmin Zhang AU - Fergus W Hamilton AU - Guillaume Butler-Laporte AU - Nicholas J Timpson AU - George Davey Smith AU - J Brent Richards PY - 2025 DO - 10.1210/clinem/dgaf305 UR - https://pubmed.ncbi.nlm.nih.gov/40504703/ ID - 40504703 ER -