[1] Fukuoka Univ, Sch Med, Dept Resp Med, Fukuoka, Japan
[2] Fukuoka Univ, Sch Med, Dept Pathol, Fukuoka, Japan
[3] Fukuoka Univ, Sch Med, Thorac Surg, Fukuoka, Japan
[4] Fukuoka Univ, Chikushi Hosp, Dept Resp Med, Fukuoka, Japan
[5] Tokyo Med & Dent Univ, Dept Human Pathol, Grad Sch, Tokyo, Japan
[6] Fac Med, Tokyo, Japan
[7] Nishi Fukuoka Hosp, Dept Resp Med, Fukuoka, Japan