1. Theoretical and Physical Chemistry Institute; National Hellenic Research Foundation; 48 Vassileos Constantinou Ave. Athens 116 35 Greece
2. School of Clinical and Experimental Medicine; College of Medical and Dental Sciences; University of Birmingham, Edgbaston; Birmingham B15 2TT UK
3. Institute of Biology; Medicinal Chemistry and Biotechnology; National Hellenic Research Foundation; 48 Vassileos Constantinou Ave. Athens 116 35 Greece
4. Centre for New Technologies; University of Warsaw; 02-097 Warsaw Poland
5. Laboratory of Pharmaceutical.Chemistry; School of Pharmacy; Aristotle University of Thessaloniki; Thessaloniki 54124 Greece
6. Department of Biochemistry; Hellenic Pasteur Institute; 127 Vas.Sofias Ave. Athens GR-11521 Greece