[1] Achillopoule Gen Hosp, Hemodialysis Unit, Volos, Greece
[2] Univ Chicago Med, Dept Med, Amer Soc, Hypertens Comprehens Hypertens Ctr, Chicago, IL USA
[3] Pieria, Hemodialysis Unit, Katerini, Greece
[4] Protypo, Hemodialysis Unit, Thessaloniki, Greece
[5] Therapeutiki, Hemodialysis Unit, Thessaloniki, Greece
[6] Aristotle Univ Thessaloniki, Hippokrat Hosp, Dept Nephrol, Thessaloniki, Greece
[7] IRCCS S Luca Hosp, Dept Cardiovasc Neural & Metab Sci, Ist Auxol Italiano, Milan, Italy
[8] Aristotle Univ Thessaloniki, Dept Nephrol, Sect Nephrol & Hypertens, Dept Med 1,AHEPA Hosp, Thessaloniki, Greece
[9] Univ Milano Bicocca, Dept Med & Surg, Milan, Italy