[1] NEUROCHEM INST,RADMANDSGADE 58,DK-2200 COPENHAGEN,DENMARK
[2] UNIV ODENSE,INST HYG PREVENT MED & ENVIRONM SCI,ODENSE,DENMARK
[3] UNIV COPENHAGEN,RIGS HOSP,DEPT DERMATOL,COPENHAGEN,DENMARK
[4] CTY HOSP ROSKILDE,DEPT NEUROL,ROSKILDE,DENMARK
[5] KOMMUNE HOSP,DEPT NEUROL,COPENHAGEN,DENMARK