[1] Guangzhou Med Univ, Affiliated Hosp 1, Dept Nucl Med, 151 Yanjiang Rd, Guangzhou 510010, Peoples R China
[2] Guangzhou Med Univ, Guangzhou Inst Resp Hlth, Affiliated Hosp 1, Natl Clin Res Ctr Resp Dis,State Key Lab Resp Dis, 151 Yanjiang Rd, Guangzhou 510010, Peoples R China
[3] Guangzhou Med Univ, Affiliated Hosp 1, Dept Nucl Med, Guangzhou, Peoples R China
[4] Guangzhou Med Univ, Guangzhou Inst Resp Hlth, Natl Clin Res Ctr Resp Dis, State Key Lab Resp Dis,Affiliated Hosp 1, Guangzhou, Peoples R China
[5] Yangchun Peoples Hosp, Dept Radiol, Yangchun, Peoples R China
[6] Guangzhou Med Univ, Affiliated Hosp 1, Dept Radiol, Guangzhou, Peoples R China