[1] ROYAL HALLAMSHIRE HOSP,SHEFFIELD S10 2JF,S YORKSHIRE,ENGLAND
[2] UNIV EDINBURGH,SCH MED,EDINBURGH EH8 9AG,MIDLOTHIAN,SCOTLAND
[3] TRENT REG BLOOD TRANSFUS CTR,SHEFFIELD S5 7JN,S YORKSHIRE,ENGLAND
[4] LEEDS PUBL HLTH LAB,LEEDS,W YORKSHIRE,ENGLAND
[5] CITY HOSP NOTTINGHAM,NOTTINGHAM,ENGLAND
[6] LINCOLN CTY HOSP,LINCOLN,ENGLAND
[7] LEICESTER ROYAL INFIRM,LEICESTER,ENGLAND
[8] DERBYSHIRE ROYAL INFIRM,DERBY DE1 2QY,ENGLAND
[9] UNIV EDINBURGH,DEPT MICROBIOL,EDINBURGH,SCOTLAND