1 Onassis Cardiac Surgery Center, Sygrou 356, Kallithea 17674, Greece. Electronic address: kfarsalinos@gmail.com.
2 ABICH S.r.l, Biological and Chemical Toxicology Research Laboratory, Via 42 Martiri, 213/B-28924 Verbania (VB), Italy. Electronic address: giorgio.romagna@gmail.com.
3 Onassis Cardiac Surgery Center, Sygrou 356, Kallithea 17674, Greece. Electronic address: vvoudris@otenet.gr.