Reduced Coupling of Global Brain Activity and Cerebrospinal Fluid Flow in Individuals With Betel Quid Dependence. - Fu, Li Li; Lv, Chao Qi; Liu, Li Ting; Fu, Qing Qing; Huang, Wei Yuan; Guo, Yi Hao; Liu, Tao; Chen, Hui Juan; Chen, Feng (Addiction Biology, 2026)