[1] Juntendo Univ, Fac Med, Div Resp Med, 3-1-3 Hongo,Bunkyo Ku, Tokyo 1138431, Japan
[2] Grad Sch Med, 3-1-3 Hongo,Bunkyo Ku, Tokyo 1138431, Japan
[3] Hattori Clin, Div Pulmonol & Allergy, 3-4-7 Motoasakusa,Taito Ku, Tokyo 1110041, Japan
[4] Nissan Tamagawa Hosp, Dept Dermatol, 4-8-1 Seta,Setagaya Ku, Tokyo 1580095, Japan
[5] Study Grp Pneumothorax & Cyst Lung Dis, 4-8-1 Seta,Setagaya Ku, Tokyo 1580095, Japan