[1] UNIV COPENHAGEN,RIGS HOSP,CLIN CHEM DEPT A,DIV HEPATOL,COPENHAGEN,DENMARK
[2] UNIV COPENHAGEN,DEPT PHARMACOL,DK-2100 COPENHAGEN O,DENMARK
[3] H LUNDBECK & CO LTD,RES LABS,COPENHAGEN,DENMARK
[4] UNIV COPENHAGEN,RIGS HOSP,MED DEPT A,DIV HEPATOL,COPENHAGEN,DENMARK