[1] UNIV LIVERPOOL,DEPT SURG,LIVERPOOL L69 3BX,MERSEYSIDE,ENGLAND
[2] UNIV LIVERPOOL,DEPT PATHOL,LIVERPOOL L69 3BX,MERSEYSIDE,ENGLAND
[3] UNIV LIVERPOOL,DEPT IMMUNOL,LIVERPOOL L69 3BX,MERSEYSIDE,ENGLAND
[4] HOP LA PITIE SALPETRIERE,CNRS URA 1463,LAB BIOL GENET PATHOL IMMUNITAIRES,CERVI,PARIS,FRANCE