[1] Univ Amsterdam, Acad Med Ctr, Dept Internal Med, Amsterdam, Netherlands
[2] Radboud Univ Nijmegen, Dept Internal Med, Med Ctr, Nijmegen, Netherlands
[3] New York Univ, Dept Neurol, Sch Med, New York, NY USA
[4] Amsterdam UMC, Dept Internal Med, Locat AMC, Secretary D3,Meibergdreef 9, NL-1105 Amsterdam, Netherlands