1. Department of Chemistry; University of Florence; Via della Lastruccia 3 50019 Sesto Fiorentino Italy
2. Magnetic Resonance Center (CERM); University of Florence and Consorzio Interuniversitario Risonanze Magnetiche di Metallo Proteine (CIRMMP); Via L. Sacconi 6 50019 Sesto Fiorentino Italy
3. GSK Vaccines; Preclinical R&D; Via Fiorentina 1 53100 Siena Italy