1. Department of PharmacologySchool of MedicineUniversity of Crete Heraklion 71003
2. Department of Experimental EndocrinologySchool of MedicineUniversity of Crete Heraklion 71003
3. Department of Clinical ChemistrySchool of MedicineUniversity of Crete Heraklion 71003
4. Institute of Organic and Pharmaceutical ChemistryNational Hellenic Research Foundation Athens 15258 Greece