[1] Univ Hosp Essen, Essen, Germany
[2] Royal Free NHS Trust, London, England
[3] State Inst Healthcare Reg Clin Oncol Dispensary, Omsk, Russia
[4] State Budgetary Hlth Care Inst Novosibirsk Reg Cl, Novosibirsk, Russia
[5] Hosp Univ Ramon y Cajal, Madrid, Spain
[6] Kyushu Univ, Fukuoka, Japan
[7] Texas Oncol, Dallas, TX USA
[8] Mem Sloan Kettering Canc Ctr, 1275 York Ave, New York, NY 10021 USA
[9] Western Univ, London, ON, Canada
[10] Hosp Santa Creu & Sant Pau, Barcelona, Spain
[11] Seoul Natl Univ Hosp, Seoul, South Korea
[12] Fdn IRCCS Ist Nazl Tumori Milano, Milan, Italy
[13] Western Hlth, St Albans, Vic, Australia
[14] Palacky Univ Med Sch & Teaching Hosp, Olomouc, Czech Republic
[15] Ctr Lutte Canc Nantes, Ctr Rene Gauducheau, St Herblain, France
[16] Keio Univ, Sch Med, Tokyo, Japan
[17] Merck & Co Inc, Kenilworth, NJ USA
[18] Eisai Inc, Woodcliff Lake, NJ USA
[19] Eisai Ltd, Hatfield, Herts, England
[20] San Matteo Univ Hosp Fdn, Pavia, Italy