Borderline problems in otorhinolaryngology : proceedings of the XIIth World Congress of Otorhinolaryngology, Budapest, Hungary, 21-27 June 1981 - World Congress of Otorhinolaryngology 1981 : Budapest, Hungary); Bodo, Gy.; Surjan, L. (Amsterdam : Excerpta Medica, 1982)
Keywords: Otolaryngology -- Congresses