1 First Department of Nephrology, Hippokration Hospital, Aristotle University of Thessaloniki, Konstantinoupoleos 49, 54642, Thessaloniki, Greece. artemiskaragiannidis@gmail.com.
2 First Department of Nephrology, Hippokration Hospital, Aristotle University of Thessaloniki, Konstantinoupoleos 49, 54642, Thessaloniki, Greece.