[1] Nanjing First Hosp, Dept Resp Med, Nanjing, Peoples R China
[2] Jiangsu Simcere Diagnost Co Ltd, Dept Med, Nanjing, Jiangsu, Peoples R China
[3] Nanjing Simcere Med Lab Sci Co Ltd, Nanjing, Peoples R China
[4] Jiangsu Simcere Diagnost Co Ltd, State Key Lab Translat Med & Innovat Drug Dev, Nanjing, Peoples R China