[1] IMPERIAL CANC RES FUND,LONDON WC2A 3PX,ENGLAND
[2] UNIV LONDON IMPERIAL COLL SCI & TECHNOL,DEPT MATH,LONDON SW7 2AZ,ENGLAND
[3] UNIV OXFORD,OXFORD,ENGLAND
[4] INST CANC RES,SUTTON SM2 5PX,SURREY,ENGLAND
[5] INST CANC RES,LONDON,ENGLAND
[6] UNIV LONDON LONDON SCH ECON & POLIT SCI,DEPT STAT & MATH SCI,LONDON WC2A 2AE,ENGLAND
[7] ROYAL STAT SOC,INST CANC RES,SUTTON SM2 5PX,SURREY,ENGLAND