1. Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, Anhui, PR China
2. Graduate school, University of Science & Technology of China, Hefei 230026, Anhui, PR China
3. Quality Safety and Framework Convention on Tobacco Control Research Team, China National Tobacco Quality Supervision & Test Center, Zhengzhou 450001, Henan, PR China
4. School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, Henan, PR China
5. Henan Cancer Hospital, Zhengzhou University, Zhengzhou 450008, Henan, PR China
6. Zhengzhou Central Hospital affiliated to Zhengzhou University, Zhengzhou 450001, Henan, PR China