[1] Univ Calif San Diego, Moores Canc Ctr, Med Oncol, La Jolla, CA USA
[2] Seattle Canc Care Alliance, Seattle, WA USA
[3] Yale Canc Ctr, Med Oncol, New Haven, CT USA
[4] Pfizer Inc, Collegeville, PA USA
[5] Pfizer New York, New York, NY USA
[6] Pfizer Inc, La Jolla, CA USA
[7] Seoul Natl Univ Hosp, Dept Internal Med, Seoul, South Korea
[8] Univ Pittsburgh, Med Ctr, Hillman Canc Ctr, Pittsburgh, PA USA
[9] Yonsei Univ, Coll Med, Yonsei Canc Ctr, Seoul, South Korea