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)
Mander Organs the company. The firm is now run by John Mander, Noel Mander's son. Its organs are installed throughout the world, including in Australia, New Zealand, Japan, the Middle East, Scandinavia and the United States, as well as in the UK. Mander Organs Mander Organs is an English pipe organ maker and refurbisher based in London. Although well known for many years in the organ building industry, they achieved wider notability in 2004 with the refurbishment of the Royal Albert Hall's Father Willis Grand Organ. Mander has built and installed numerous celebrated organs, notably the 68-stop four manual and pedal organ