[1] New Tokyo Hosp, Chiba, Japan
[2] Kumamoto Univ Hosp, Kumamoto, Japan
[3] Konyang Univ Hosp, Taejon, South Korea
[4] Husada Hosp, Jakarta, Indonesia
[5] King Chulalongkorn Mem Hosp, Bangkok, Thailand
[6] Mahidol Univ, Siriraj Hosp, Fac Med, Bangkok 10700, Thailand
[7] Chest Dis Inst, Nonthaburi, Thailand