[1] Natl Def Med Coll, Dept Internal Med, Div Infect Dis & Resp Med, Tokorozawa, Saitama, Japan
[2] Natl Def Med Coll Hosp, Dept Med Risk Management & Infect Control, Tokorozawa, Saitama, Japan
[3] Yokohama City Univ, Dept Pulmonol, Grad Sch Med, Yokohama, Kanagawa, Japan
[4] Nagoya City Univ, Grad Sch Med Sci, Nagoya, Aichi, Japan
[5] Nagoya City Univ, West Med Ctr, Nagoya, Aichi, Japan
[6] Yokohama City Univ Med, Chemotherapy Ctr, Yokohama, Kanagawa, Japan
[7] Saka Gen Hosp, Dept Resp Med, Shiogama, Miyagi, Japan
[8] Okinawa Natl Hosp, Natl Hosp Org, Dept Resp Med, Ginowan, Okinawa, Japan
[9] Univ Occupat & Environm Hlth, Dept Resp Med, Kitakyushu, Fukuoka, Japan
[10] Kansai Med Univ, Dept Internal Med 1, Div Resp Med Infect Dis & Allergol, Hirakata, Osaka, Japan
[11] Nagasaki Univ Hosp, Med Educ Dev Ctr, Nagasaki, Nagasaki, Japan
[12] Nagasaki Univ Hosp, Dept Resp Med, Nagasaki, Nagasaki, Japan
[13] Nagasaki Univ, Grad Sch Biomed Sci, Dept Resp Med, Nagasaki, Nagasaki, Japan