AbstractReferences1. Marquet J (1970) Acta otorhinolaryngologica Belgica 24, 157.2. Smith M F W (1973) In: Symposium on Homologous and Heterologous Tympanoplasty. Tenth World Congress in Otolaryngology held in Venice 1973. Excerpta Medica, Amsterdam.3. Wright J L W (1972) Journal of Laryngology and Otology 86, 1.