1999 Society for pediatrics research, San Francisco, USA.
2000 Israel Pediatrics Society, Tel Aviv, Israel.
2001 Israel Pediatrics Society, Tel Aviv, Israel.
2001 Society for pediatrics research, Baltimore, USA.
2002 Israel Pediatrics Society, Tel Aviv, Israel.
2003 Israel Pediatrics Society, Tel Aviv, Israel.
2003 Society for pediatrics research, Seattle, USA.
2004 Society for pediatrics research, San Francisco, USA.
2004 Israel Pediatrics Society, Tel Aviv, Israel.
2005 Israel Pediatrics Society, Tel Aviv, Israel.
2005 Society for pediatrics research, Washington, USA
2006 Israel Pediatrics Society, Tel Aviv, Israel.
2006 Society for pediatrics research, San Francisco, USA.
2007 Israel Pediatrics Society, Tel Aviv, Israel.
2007 European Society for pediatric research, Prague, Czech Republic.
2008 Israel Pediatrics Society, Tel Aviv, Israel.
2008 European Academy of pediatrics. Nice, France.
2009 Society for pediatrics research, Baltimore, USA.
2010 Israel Pediatrics Society, Tel Aviv, Israel
2010 Society for Pediatric Research, Vancouver, BC, Canada, USA
2011 Israel Pediatrics Society, Tel Aviv, Israel
2011 Annual meeting of ESPGHAN, Sorrento,Italy
2012 Israel Pediatrics Society, Tel Aviv, Israel
2012 Society for Pediatric Research, Boston, MA, USA
2013 Society for Pediatric Research, Washington, USA
2013 International Diary Federation, Yokohama, Japan