Affiliations: Sanquin Blood Bank South West Region, Rotterdam, The
Netherlands and Department of Haematology Erasmus University Medical Center,
Rotterdam, The Netherlands
Note: [] Corresponding author: Professor Dick J. van Rhenen, MD PhD,
Sanquin Blood Bank South West Region, Wytemaweg 10, 3015 CN Rotterdam, The
Netherlands. Tel.: +31 10 4630630; Fax: +31 10 4630640; E-mail:
dick.van.rhenen@bloodrtd.nl