Program Chair of the 1st International Annual Meeting
1970 Chicago, IL USA

Program Chair of the 2nd International Annual Meeting
1971 Saddle Brook, NJ USA

Program Chair of the 3rd International Annual Meeting
1972 Nashville, TN USA

Program Chair of the 4th International Annual Meeting
1973 Philadelphia, PA USA

Program Chair of the 5th International Annual Meeting
1974 Denver, CO USA

Program Chair of the 6th International Annual Meeting
1975 Boston, MA USA/London, England

Program Chair of the 7th International Annual Meeting
1976 San Diego, CA USA

Program Chair of the 8th International Annual Meeting
1977 Madison, WI USA

Program Chair of the 9th International Annual Meeting
1978 Toronto, Canada

Program Chair of the 10th International Annual Meeting
1979 Oxford, England

Program Chair of the 11th International Annual Meeting
1980 Pacific Grove, CA USA

Program Chair of the 12th International Annual Meeting
1981 Aspen, CO USA

Program Chair of the 13th International Annual Meeting
1982 Smugglers' Notch, VT USA

Program Chair of the 14th International Annual Meeting
1983 Sheffield, England

Program Chair of the 15th International Annual Meeting
1984 Lake Louise, Canada

Program Chair of the 16th International Annual Meeting
1985 Evanston, IL USA

Program Chair of the 17th International Annual Meeting
1986 Wellesley, MA USA

Program Chair of the 18th International Annual Meeting
1987 Ulm, Germany

Program Chair of the 19th International Annual Meeting
1988 Santa Fe, NM USA

Program Chair of the 20th International Annual Meeting
1989 Toronto, Canada

Program Chair of the 21st International Annual Meeting
1990 Wintergreen, VA USA

Program Chair of the 22nd International Annual Meeting
1991 Lyon, France

Program Chair of the 23rd International Annual Meeting
1992 Berkeley, CA USA

Program Chair of the 24th International Annual Meeting
1993 Pittsburgh, PA USA

Program Chair of the 25th International Annual Meeting
1994 York, England

Program Chair of the 26th International Annual Meeting
1995 Vancouver, Canada

Program Chair of the 27th International Annual Meeting
1996 Amelia Island, FL USA

Program Chair of the 28th International Annual Meeting
1997 Geilo, Norway

Program Chair of the 29th International Annual Meeting
1998 Snowbird, UT USA

Program Chair of the 30th International Annual Meeting
1999 Braga, Portugal

Program Chair of the 31st International Annual Meeting
2000 Bloomingdale, IL USA

Program Chair of the 32nd International Annual Meeting
2001 Montevideo, Uruguay

Program Chair of the 33rd International Annual Meeting
2002 Santa Barbara, CA USA

Program Chair of the 34th International Annual Meeting
2003 Weimar, Germany

Program Chair of the 35th International Annual Meeting
2004 Rome, Italy

Program Chair of the 36th International Annual Meeting
2005 Montreal, Canada

Program Chair of the 37th International Annual Meeting
2006 Edinburgh, Scotland

Program Chair of the 38th International Annual Meeting
2007 Madison, USA

Program Chair of the 39th International Annual Meeting
2008 Barcelona, Spain

Program Chair of the 40th International Annual Meeting
2009 Santiago de Chile, Chile

Program Chair of the 41st International Annual Meeting
2010 Asilomar, USA

Program Chair of the 42nd International Annual Meeting
2011 Bern, Switzerland

Program Chair of the 43rd International Annual Meeting
2012 Virginia Beach, USA

Program Chair of the 44th International Annual Meeting
2013 Brisbane, Australia

Program Chair of the 45th International Annual Meeting
2014 Copenhagen, Denmark

Program Chair of the 46th International Annual Meeting
2016 Philadelphia,USA