[1] UNIV HOSP WALES,INST MED GENET WALES,CARDIFF,WALES
[2] UNIV HOSP WALES,DEPT MED BIOCHEM,CARDIFF,WALES
[3] GWENT HLTH AUTHOR,NEWPORT,WALES
[4] ROYAL GWENT HOSP,DEPT MED BIOCHEM,NEWPORT NPT-2VB,GWENT,WALES
[5] ROYAL GWENT HOSP,DEPT CHEM PATHOL,NEWPORT NPT-2VB,GWENT,WALES