[1] Univ Tokyo, Tokyo, Japan
[2] Nagasaki Univ Hosp Med & Dent, Nagasaki, Japan
[3] Jikei Univ Hosp, Tokyo, Japan
[4] Natl Canc Ctr, Tokyo, Japan
[5] Keio Univ Hosp, Tokyo, Japan
[6] Tokyo Med Univ Hosp, Tokyo, Japan
[7] Chiba Univ Hosp, Chiba, Japan
[8] Hosp Hyogo Coll Med, Hyoko, Japan
[9] Novartis Pharmaceut, E Hanover, NJ USA