Comité Interamericano De Sociedades De Microscopía Electrónica CIASEM is the organizer of the Interamerican Congresses on Microscopy, which are held every two years. There have been nine previous Interamerican Congresses on Microscopy. They are listed below. The next Congress will be in Argentina in 2009. Past congresses: First Interamerican Electron Microscopy Congress (Mérida, 1991) Second Interamerican Electron Microscopy Congress (Cancún, 1993) Third Interamerican Electron Microscopy Congress (Caxambú, 1995) Fourth Interamerican Electron Microscopy Congress (Guayaquil, September 23-26, 1997) Fifth Interamerican Electron Microscopy Congress (Isla Margarita, October 24-28, 1999) Sixth Interamerican Electron Microscopy Congress (Veracruz, October 7-11, 2001) Seventh Interamerican Electron Microscopy Congress (San Antonio, August 3-7, 2003) Eighth Interamerican Congress of Electron Microscopy (Havana, September 25-30, 2005) Ninth Interamerican Congress of Electron Microscopy (Cusco, September 23-28,2007)