1. Bioanalytical
Laboratory, PRA Health Sciences, Early Development Services, Amerikaweg 18, 9407
TK Assen, The Netherlands
2. Analytical
Biochemistry, Department of Pharmacy, University of Groningen, A. Deusinglaan
1, 9700 AV Groningen, The Netherlands
3. Faculty
of Medical Sciences, Department of Medical Oncology, University Medical Centre Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands