Laboratory of Veterinary Public Health;
Department of Veterinary Medicine;
Faculty of Agriculture;
lwate University;
Japan;
Research Institute for Environmental Science and Public Health of Iwate Prefecture;
Japan;
Graduate School of Life and Environmental Sciences;
University of Tsukuba;
Japan;
Department of Hygienic Toxicology;
College of Public Health;
China Medical University;
China;
CYP; Genetic polymorphism of CYP2A6 is one of the potential factors determining tobacco-related cancer risk;