[1] Nanjing Med Univ, Ctr Canc, Nanjing 210029, Jiangsu, Peoples R China
[2] Xinqiao Hosp, Inst Resp Dis, Chongqing, Peoples R China
[3] Third Mil Med Univ, Dept Resp Dis, Southwest Hosp, Chongqing, Peoples R China
[4] Chinese Acad Sci, Inst Nutr Sci, Shanghai Inst Biol Sci, Shanghai, Peoples R China
[5] W Virginia Univ, Mary Babb Randolph Canc Ctr, Dept Microbiol Immunol & Cell Biol, Morgantown, WV 26506 USA