[1] UNIV SOUTHAMPTON,SOUTHAMPTON GEN HOSP,BIOCHEM CLIN,LEVEL D,S LAB & PATHOL BLOCK,TREMONA RD,SOUTHAMPTON S09 4XY,ENGLAND
[2] UNIV LONDON UNIV COLL,MRC,HUMAN BIOCHEM GENET UNIT,LONDON NW1 2HE,ENGLAND
[3] UNIV LONDON UNIV COLL,DEPT GENET & BIOMETRY,GALTON LAB,LONDON NW1 2HE,ENGLAND