1. School
of Pharmacy, Pharmacology Unit, University of Camerino, Via Madonna
delle Carceri 9, 62032 Camerino, Italy
2. Department
of Pharmacology, Medical Sciences Building, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
3. School of
Pharmacy, Medicinal Chemistry Unit, University of Camerino, Via S. Agostino
1, 62032 Camerino, Italy