01/12 BJ BANTAO Journal Official Publication of the BANTAO Association Incorporating Proceedings of the BANTAO Association Editor-in-Chief Associate Editors Goce Spasovski Skopje Mustafa Arici Ankara Nada Dimkovic Belgrade Editores Emeriti Dimitrios Goumenos Patra Nikolina Basic-Jukic Zagreb Dimitr Nenov Varna Momir Polenakovic Skopje Deputy Editors Ljubica Djukanovic Belgrade Charalambos Stathakis Athens Veselin Nenov Varna Ali Basci Izmir Adrian Covic Iasi Editorial Board Aydin Turkmen Istanbul Katica Zafirovska Skopje Alketa Koroshi Tirana Ladislava Grcevska Skopje Amira Peco Antic Belgrade Liliana Garneata Bucharest Biljana Stojmirovic Belgrade Kostas Siamopoulos Ioannina Boriana Kiperova Sofija Marko Malovrh Ljubljana Cengiz Utas Kayseri Milan Radovic Belgrade Daniela Monova Sofia Myftar Barbullushi Tirana Dimitrios Memmos Thessaloniki Olivera Stojceva Taneva Skopje Dimitris Tsakiris Thessaloniki Paul Gusbeth-Tatomir Iasi Ekrem Erek Istanbul Petar Kes Zagreb Evgueniy Vazelov Sofija Rade Naumovic Belgrade Fehmi Akcicek Izmir Rafael Ponikvar Ljubljana Fevzi Ersoy Antalya Sanja Simic-Ogrizovic Belgrade Georgios Vergoulas Thessaloniki Sanjin Racki Rijeka Gordana Peruncic-Pekovic Belgrade Serhan Tuglular Istanbul Gultekin Suleymanlar Antalya Sevgi Mir Izmir Halima Resic Sarajevo Tekin Akpolat Samsun Igor Mitic Novi Sad Velibor Tasic Skopje Jadranka Buturovic-Ponikvar Ljubljana Vidosava Nesic Belgrade Jelka Masin Spasovska Skopje Vidojko Djordjevic Nis John Boletis Athens Visnja Lezaic Belgrade Kamil Serdengecti Istanbul Vladislav Stefanovic Nis Kenan Ates Ankara Mahmut Ilker Yilmaz Ankara International Advisory Board Andrzej Wiecek Poland Jorge Cannata Spain Claudio Ponticelli Italy Jurgen Floege Germany Carmine Zoccali Italy Marc De Broe Belgium David Goldsmith UK Markus Ketteler Germany Dimitrios Oreopoulos  Canada Mohamed Daha Netherlands Francesco Locatelli Italy Norbert Lameire Belgium Horst Klinkmann Germany Raymond Vanholder Belgium John Feehally UK Rosanna Coppo Italy Jorg Vienken Germany Ziad Massy France Published by: Balkan Cities Association of Nephrology, Dialysis, Transplantation and Artificial Organs Printing: BANTAO, 2012