[1] UNIV COPENHAGEN,HERLEV HOSP,DEPT CARDIOL,DK-2730 HERLEV,DENMARK
[2] UNIV COPENHAGEN,HERLEV HOSP,DEPT CLIN PHYSIOL & NUCL MED,DK-2730 HERLEV,DENMARK
[3] HVIDORE HOSP,DK-2920 KLAMPENBORG,DENMARK
[4] UNIV COPENHAGEN,FREDERIKSBERG HOSP,DEPT MED B,DK-2000 FREDERIKSBERG,DENMARK