Disentangling the effects of nicotine versus non‐nicotine constituents of tobacco smoke on major depressive disorder: A multivariable Mendelian randomisation study. - Burke, Chloe; Taylor, Gemma; Freeman, Tom P.; Sallis, Hannah; Wootton, Robyn E.; Munafò, Marcus R.; Dardani, Christina; Khouja, Jasmine (Addiction, 2025)