Sub03/02/03/06 10th World Congress of Cryosurgery, 1998, Orlando, Florida, USA
Sub03/02/03/05 11th International and European Congress of Cryosurgery, 2001, Lisbon, Portugal
Sub03/02/03/04 12th International and European Congress of Cryosurgery, 2003, London, UK
Sub03/02/03/03
Sub03/02/03/02 14th World Congress of the ISC, 2007, Beijing, China
Sub03/02/03/01 15th World Congress of the ISC, 2009, St.Petersburg, Russia