Analysis of the Impact of Tobacco Structure on Puff-by-puff Release of NNK in Mainstream Smoke

• LI Chao, 
• ZHANG Chengming, 
• LI Ying, 
• XIONG Wen, 
• YE Lin, 
• ZHANG Jian, 
• JIANG Li, 
• GAO Wenjun, 
• QIN Yunhua