605,158 KHAN JAMSHEED A. Experimental and clinical studies in otitis media with effusion : the role of carbocisteine / by Jamsheed A. Khan. — Ashford : Headley Brothers Ltd : The Invicta Press, 1983. — III. [1], 27 s. ; 24 cm The Jornal of Laryngology and Otology ; suppl. nr 7 ISSN 0144-29457