1. Division of Respiratory Medicine; Department of Internal Medicine; Uji Tokushukai Medical Center; 145, Ishibashi, Makishima-cho Uji Kyoto 611-0041 Japan
2. Division of Thoracic Surgery; Department of General Surgery; Uji Tokushukai Medical Center; 145, Ishibashi, Makishima-cho Uji Kyoto 611-0041 Japan