۱۶th European Congress of clinical microbiology and infectious disease.Nice,France.1-4 April 2006.Bordetellapertosis infection	۱
۱۴th Iranian congress on Infectious disease and tropical medicine .Tehran 17-21Dec 2005 infection	۲
۸th Iranian congress of immunology and allergy.Tehran16-18 May2006	۳
۱۶th Annual Meeting of the iranian Orthopaedic Association.28-31October2008	۴
۱۸th Annual Meeting of the iranian Orthopaedic Association.25_29October2010	۵