at Sheraton Gateway Suites O’Hare on 14 May 2013 – 17 May 2013

at Multiple on 25 Sep 2012 – 12 Dec 2012

at Sheraton Gateway Suites O’Hare on 22 May 2012 – 25 May 2012

at Sheraton Gateway Suites O’Hare on 24 May 2011 – 27 May 2011