[1] Juntendo Univ, Grad Sch Med, Dept Resp Med, Tokyo, Japan
[2] Toranomon Gen Hosp, Dept Resp Med, Resp Ctr, Tokyo, Japan
[3] Natl Ctr Global Hlth & Med, Dept Resp Med, Tokyo, Japan
[4] Japanese Red Cross Med Ctr, Dept Resp Med, Tokyo, Japan
[5] Nippon Med Sch, Grad Sch Pulm Med, Tokyo, Japan
[6] Sakai City Med Ctr, Dept Radiol, Osaka, Japan
[7] Saga Univ, Dept Radiol, Fac Med, Saga, Japan
[8] Keio Univ, Sch Med, Dept Diagnost Radiol, Tokyo, Japan
[9] Jikei Univ, Sch Med, Dept Internal Med, Div Resp Dis, Tokyo, Japan
[10] Kitasato Univ, Sch Pharm, Dept Clin Med, Tokyo, Japan