1. The
Maastricht Multimodal Molecular Imaging Institute (M4I), Division
of Imaging Mass Spectrometry, Maastricht University, Universiteitssingel
50, 6229 ER Maastricht, The Netherlands
2. University Medical Centre (UMC) Utrecht, Orthopedics
Department, Heidelberglaan
100, 3584 CX Utrecht, The Netherlands