1. Institute of Inorganic Chemistry, University of Zürich, Winterthurerstraße
190, CH-8057 Zürich, Switzerland
2. Radiopharmaceutical Chemistry, Vrije Universiteit Brussel, Laarbeeklaan103, 1090 Brussel,
Belgium
3. Nuclear Medicine,
NUTRIM, Maastricht University, P. Debeyelaan
25, 6229 HX Maastricht,
The Netherlands