1. Academic Medical Center Department of Vascular Medicine, PO Box 22660, Amsterdam1100DDThe Netherlands Tel.: ; Fax:
2. Academic Medical CenterLaboratory of Experimental Vascular Medicine, PO Box 22660, Amsterdam1100DDThe Netherlands Tel.: ; Fax:
3. University of Groningen & University MedicalDepartment of Molecular Pathology, PO Box 30001, Groningen, RB9700The Netherlands
4. University of Groningen & University MedicalDepartment of Molecular Pathology, PO Box 30001, Groningen, RB9700The Netherlandsand, Erasmus University Medical CenterDepartment of Cell Biology & Genetics, PO Box 2040, GRotterdam, CA3000The Netherlands Tel.: ; Fax: