Dear colleagues, Promotion of the development of ENT is one of the most important tasks of IFOS (International Federation of Otorhinolaryngology). Apart from organizing the World Congresses it supports different international and regional meetings, organizes symposiums on well- determined subjects, etc. Since the last World Congress in 1981, in addition to the Danube Symposium in 1982 and the Congress of ENT Societies in Asia- Oceania in 1983, an international symposium was organized in Antwerp by the Belgian ENT Society on evaluation problems of middle ear surgery. This is a very...