Causality of genetically determined serum metabolites on lower back pain or/and sciatica: a comprehensive Mendelian randomized study - Ren, Yi-Ming; Hou, Wei-Yu; Fan, Bao-You; Duan, Yuan-Hui; Sun, Yun-Bo; Yang, Tao; Zhang, Han-Ji; Sun, Tian-Wei; Tian, Meng-Qiang (Frontiers in Pain Research, 2024)