[1] Natl Canc Ctr, Tokyo, Japan
[2] Inst Biomed Res & Innovat, Kobe, Hyogo, Japan
[3] Aichi Canc Ctr Hosp, Dept Thorac Oncol, Nagoya, Aichi 464, Japan
[4] Osaka Med Ctr, Osaka, Japan
[5] Saitama Canc Ctr, Saitama, Japan
[6] Kinki Chuo Chest Med Ctr, Osaka, Japan
[7] Japanese Fdn Canc Res, Tokyo, Japan
[8] Merck KGaA, Darmstadt, Germany
[9] Merck Serono Co Ltd, Tokyo, Japan
[10] St Lukes Int Hosp, Tokyo, Japan