1. University of Namur; Laboratoire de Chimie Biologique Structurale; rue de Bruxelles 61, 5000 Namur Belgium
2. University of Bologna; Dipartimento di Chimica “Giacomo Ciamician”; Via Selmi 2, 40126 Bologna Italy
3. UCB Pharma SA; Analytical Development; Avenue de l'Industrie, 1420 Braine-l'Alleud Belgium