1. Surgical Management Of Tongue Cancer, ( Jeffry D. Spiro ). American Acedemy of Otolaryngology Head and Neck Surgery 99 th. Annuel Meeting New Orleans 1995.
  2. Choronic Ear Disease, ( James L. Sheehy ) . American Acedemy of Otolaryngology Head and Neck Surgery 99 th. Annuel Meeting New Orleans 1995.
  3. Facial Palsy, ( Jack L. Pulec ) . American Acedemy of Otolaryngology Head and Neck Surgery 99 th. Annuel Meeting New Orleans 1995.
  4. Otitis Media With Effussion ( Charles D. Blustone ) . American Acedemy of Otolaryngology Head and Neck Surgery 99 th. Annuel Meeting New Orleans 1995.
  5. Radical Mastoidectomy and Cavity Obliteration Technique .( İ. Nazmi Hoşal ) American Acedemy of Otolaryngology Head and Neck Surgery 99 th. Annuel Meeting New Orleans 1995.
  6. Contack Endoscopy ( Mario Andrea ) . XVI. World Congress of Otorhinolaryngology, Head and Neck Surgery, Sydney- Australia, 2-7 Marc 1997
  7. Laryngeal Stroboscopy ( Jurgen Wendler ). XVI. Worl Congress of Otorhinolaryngology, Head and Neck Surgery, Sydney- Australia, 2-7 Mart 1997
  8. Microsurgical Approach for Giant Para Pharyngeal Tumors, ( Ugo Fish ), XVI. Worl Congress of Otorhinolaryngology, Head and Neck Surgery, Sydney- Australia, 2-7 Marc 1997
  9. Tinnutus Evaluation and Treatment ( Jonathan Hazell ), XVI. Worl Congress of Otorhinolaryngology, Head and Neck Surgery, Sydney- Australia, 2-7 Mart 1997
  10. Evolving Concept in Modifications of Neck Dissection in Heah and Neck Cancer. ( Jatin Shah ), XVI. Worl Congress of Otorhinolaryngology, Head and Neck Surgery, Sydney- Australia, 2-7 Marc 1997
  11. Larinks ve Boynun Fonksiyonel Cerrahisi,( Italo Serafini ), Ankara Üniversitesi Tıp Fakültesi, 8-10 Ekim 1998
  12. Cochlear Implant, ( Lassec ) Basel and Frayburg ,2-4 December 1998.
  13. Cochlear Implant. House Ear Institute, California 24-26 February 1999.
  14. Dissection Workshop at the Occasion of the 2 nd International Auditory Barinstem Implant Symposium on the 22 nd to 24 th April 1999 in Freiburg,Deutschland
  15. Cochlear İmplant Workshop,Univercity Hospital, Nov 30-Dec 2,2000,Zurich,Switzerland
  16. Auditory Brainstem İmplant,3rd İnternational Workshop,8-10 March 2001,Freiburg,Deutschland
  17. Auditory Brainstem İmplant,Dissection Workshop,10 March 2001,Freiburg,Deutschland
  18. Endonasal Sinus Surgery Course(Heinz Stenberger, Wolfgang Draf) June.19.2004 Istanbul.
  19. Advanced FESS Technique Course(Paolo Castelnuova) June.20.2004.Istanbul
  20. Nucleus Contour Advance Workshop.June 22-26.2004 . Belgium.
  21. Baha Workshop( Prof.Dr.Roland Laszig,Prof.Dr.Levent Sennaroğlu):1-2 Mart.2007 Ankara