American Thoracic Society, San-Diego, USA, May 20-25, 2005. (PDF)
European Sleep Research Society, 17th Congress, Prague, Czechoslovakia, October 5-9, 2004.(PDF)
European Respiratory Society, 14th Annual Congress, Glasgow, Scotland, September 3-7, 2004.(PDF)
Associated Professional Sleep Societies (APSS), 15th meeting, Chicago, Illinois, June 5-10, 2001,(Sleep Volume 24, Abstract suppl:A310).
Associated Professional Sleep Societies, 14th Annual Meeting, Las Vegas, Nevada, June 17-22, 2000, (Sleep volume 23, suppl #2: A7).(PDF)
Associated Professional Sleep Societies, 13th Annual Meeting, Orlando, Florida, June 19-24, 1999, (Sleep volume 22, suppl #1: S17).(PDF)