TY - JOUR T1 - Causal associations between plasma metabolites and head and neck cancer: a bidirectional Mendelian randomization study JO - Brazilian Journal of Otorhinolaryngology A1 - Pan, Zhaoyu A1 - Wang, Xueying A1 - Xu, Ziyuan A1 - Lu, Mingshui A1 - Zhang, Xin A1 - Xiao, Lei SN - 1808-8694 UL - 10.1016/j.bjorl.2026.101812 VL - 92 Y1 - 2026 PB - Brasil ER -