[1] UNIV MUNSTER, INST ARTERIOSKLEROSEFORSCH, D-48149 MUNSTER, GERMANY
[2] UNIV LONDON, ROYAL FREE HOSP, SCH MED, DEPT MED, LONDON NW3 2PF, ENGLAND
[3] NORTHWICK PK HOSP & CLIN RES CTR, DEPT CLIN CHEM, HARROW HA1 3UJ, MIDDX, ENGLAND
[4] NORTHWICK PK HOSP & CLIN RES CTR, DEPT ENDOCRINOL, HARROW HA1 3UJ, MIDDX, ENGLAND