1. 2nd Cardiology Department, Attikon Hospital, National and Kapodistrian University of Athens, Medical School, Greece (I.I., D.V., K.K., G.K., M.V., G.P., H.T., J.P., E.I., J.L.)
2. Department of Pharmaceutical Chemistry, National and Kapodistrian University of Athens, School of Pharmacy, Greece (P.E., I.A.).