| Authors: |
Liu N; School of Public Health, North China University of Science and Technology, Hebei Key Laboratory of Occupational Health and Safety for Coal Industry, Tangshan, Hebei, 063210, China. Electronic address: liunantsh@163.com., Wan P; School of Public Health, North China University of Science and Technology, Hebei Key Laboratory of Occupational Health and Safety for Coal Industry, Tangshan, Hebei, 063210, China., Cao C; School of Public Health, North China University of Science and Technology, Hebei Key Laboratory of Occupational Health and Safety for Coal Industry, Tangshan, Hebei, 063210, China., Cao F; School of Public Health, North China University of Science and Technology, Hebei Key Laboratory of Occupational Health and Safety for Coal Industry, Tangshan, Hebei, 063210, China., Yu Y; School of Public Health, North China University of Science and Technology, Hebei Key Laboratory of Occupational Health and Safety for Coal Industry, Tangshan, Hebei, 063210, China., Xue L; School of Public Health, North China University of Science and Technology, Hebei Key Laboratory of Occupational Health and Safety for Coal Industry, Tangshan, Hebei, 063210, China., Li G; North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, 063000, China. Electronic address: tsyxzll@163.com. |
