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In the first iteration, we searched the Web of Science ( and PubMed ( databases for peer-reviewed articles with the following logical conjunction of terms: (voxel-based morphometry OR morphometry OR gray matter density OR gray matter volume) AND (nicotine OR tobacco OR cigarette OR smok*)

I knew what I wanted

Using the entire hemisphere as the seed region-of-interest, Viswanath and colleagues showed increased inter-hemispheric FC in sated cigarette smokers as compared to controls, which was positively correlated with the number of cigarettes smoked per day 9

Alcohol drinking in never users of tobacco, cigarette smoking in never drinkers, and the risk of head and neck cancer:pooled analysis in the International Head and Neck Cancer Epidemiology Consortium