1.       Annual Meeting of Dutch Society of Pharmacology (presentation), 13-14 December 1993, Noordwijkerhout, The Netherlands.

2.       1^st Autumn Meeting of the Groningen-Utrecht Institute for Drug Exploration (GUIDE; presentation), 8 November 1994, Utrecht, The Netherlands.

3.       Annual Meeting of Dutch Society of Pharmacology (presentation), 8-9 December 1994, Noordwijkerhout, The Netherlands.

4.       International Conference of the American Thoracic Society (presentation), 20-24 May 1995, Seattle, USA

5.       Joint Meeting of the German and Dutch Pharmacological Societies (presentation), 4-7 October 1995, Maastricht, The Netherlands.

6.       Annual Meeting of Dutch Society of Pharmacology (presentation), 1-2 February 1996, Lunterren, The Netherlands.

7.       International Conference of the American Thoracic Society (presentation), 10-15 May 1996, New Orleans, USA.

8.       3^rd Congress of the Iranian Veterinary Students (panel chairman), April 1997, Urmia, Iran.

9.       13^th Iranian Congress of Physiology & Pharmacology (presentation + Panel member), 26-29 August 1997, Isfahan, Iran

10.   13^th International Congress of Pharmacology (presentation), 26-31 July 1998, Munchen, Germany.

11.   14^th Iranian Congress of Physiology & Pharmacology (presentation), May 16-20 May 1999.

12.   5^th Iranian Congress of Biochemistry (presentation), 6-9 September 1999, Urmia, Iran.

13.   4^th Iranian Congress of Iranian Veterinary Students (invited speaker), 12-14 October 1999.

14.   5^th Iranian Congress of Immunology & Allergy (presentation), 18-20 May 2000, Tehran, Iran.

15.   1^st Iranian Congress of Veterinary Basic Sciences (presentation + panel member + member of the scientific board), 31 May 31-2 June 2000, Tehran, Iran.

16.   1^st International Workshop on Artemia (presentation), 12-15 May 2001, Urmia, Iran.

17.   11^th International Congress of Immunology (presentation), 22-27 July 2001, Stockholm, Sweden.

18.   1^st Meeting of the Iranian North-West Biotechnology (participant), Summer 2001, Urmia, Iran.

19.   3^rd Iranian Symposium of Veterinary Surgery, Anesthesiology and Radiology (presentation + panel member), 9-11 October 2001, Urmia, Iran.

20.   15^th Iranian Congress of Physiology & Pharmacology (presentation), 5-8 November 2001, Shiraz, Iran.

21.   14th ASEAN Congress of Cardiology (presentation), 17-21 July 2002, Kuala Lumpur, Malaysia.

22.   16^th Iranian Congress of Physiology & Pharmacology (Presentaion), 9-13 May 2003, Tehran, Iran.

23.   The 3^rd  International  Congress  of  Asian  Society  of  Toxicology (ASIATOX III, Presentation), 1-6 February 2004, Bangkok / Chiang Mai, Thailand.

24.   The 4^th Scientific Annual Meeting of the Iranian Pain Society (Presentation), 29 April – 1 May 2004, Tehran, Iran.