1. Department of Respiratory Disease West China Hospital Sichuan University Chengdu China
2. Toxicology Joint Laboratory China Tobacco of Chuanyu Industrial Corporation Chengdu China
3. Toxicology Joint Laboratory West China Hospital Sichuan University Chengdu China
4. Harmful Components and Tar Reduction in Cigarette Sichuan Key Laboratory China Tobacco of Chuanyu Industrial Corporation Chengdu China