1. Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, State University of New York, Buffalo, New York, USA
2. Department of Biostatistics, School of Public Health and Health Professions, University at Buffalo, State University of New York, Buffalo, New York, USA
3. Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, New York, USA
4. Department of Biotechnical and Clinical Laboratory Sciences, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, New York, USA
5. Department of Occupational and Environmental Health, School of Public Health, Peking University, Beijing, China