Polish Society of Nephrology improvements in continuous professional development as well as research activities among young doctors and other professionals in the fields of nephrology, dialysis therapy and renal transplantation. PSN Congresses are organized every three years. As yet twelve Congresses were held in the following locations in Poland: 1st Congress - Bydgoszcz (1983) 2nd Congress - Kraków (1986) 3rd Congress - Gdańsk (1989) 4th Congress - Katowice (1992) 5th Congress - Lublin (1995) 6th Congress - Poznań (1998) 7th Congress - Kraków (2001) 8th Congress - Białystok (2004) 9th Congress – Katowice/Wisła (2007) 10th Congress - Bydgoszcz (2010) 11th Congress - Wrocław (2013)
Eli Friedman nine books and published over 520 peer reviewed papers, Friedman is a recognized authority in Nephrology serving as President of several scientific societies including the American and International Societies for Artificial Organs and The International Society for Geriatric Nephrology and Urology. Friedman has been consistently listed as a "Best Doctor" in New York and the National and International Who's Who. Both the International Society for Hemodialysis and the Alumni Association of Downstate Medical Center awarded Lifetime Achievement Awards to Friedman who celebrated his 79th Birthday in 2011. Eli Friedman Eli A. Friedman (born in Brooklyn, New York, April 9, 1933)