[1] Tongji Univ, Sch Med, Inst Gallstone Dis, Ctr Gallbladder Dis,Shanghai East Hosp, Shanghai, Peoples R China
[2] Nanjing Med Univ, Inst Toxicol, State Key Lab Reprod Med, Nanjing, Jiangsu, Peoples R China
[3] Nanjing Med Univ, Sch Publ Hlth, Minist Educ, Key Lab Modern Toxicol, Nanjing, Jiangsu, Peoples R China
[4] Shanghai Jiao Tong Univ, Sch Med, Ruijin Hosp, Dept Surg,Shanghai Inst Digest Surg, Shanghai, Peoples R China