12/20/2018 in Belgrade/Serbia 09/23/2017 in Boston 06/01/2017 12/01/2016 06/01/2016 06/01/2016 04/09/2016 - 04/12/2016 in San Juan / Puerto Rico (Ritz-Carlton) 03/31/2016 in Memorial Sloan Kettering Cancer Center / New York / USA 12/01/2015 10/05/2015 - 10/09/2015 in Lanitis Carob Mill by the Limassol Medieval Castle/ Cyprus