1. Department of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy
2. Laboratory of Molecular Medicine, University of Pavia, Pavia, Italy
3. S.A.V.E. Studi Analisi Valutazioni Economiche Research Centre, Milan, Italy
4. Department of Management information and production Engineering, University of Bergamo, Bergamo, Italy
5. Drug Science Department, University of Pavia, Pavia, Italy