1st IGSC Joint Meeting, Amsterdam 1989 6th World Congress, Thailand 1995 7th World Congress, Hungary 1996 8th World Congress, France 1998 9th World Congress, Japan 1999 10th World Congress, Italy 2000 11th World Congress, Greece 2001 12th World Congress, Turkey 2002 15th World Congress, Czech Republic 2005 16th World Congress, Spain 2006 17th World Congress, Romania 2007 18th World Congress, Turkey 2008 19th World Congress, China 2009 20th World Congress, Egypt 2010 22nd World Congress, Thailand 2012 23rd World Congress, Romania 2013 24th World Congress, Austrial 2014 25th World Congress, China 2015
