1. Korner's septum: does it contribute to adhesion and retraction process?;Akyildiz,1991
2. Otitis media with effusion, atelectasis and Eustachian tube dysfunction;Bluestone,1980
3. School screening and middle ear effusion;Brooks;Ann. Otol. Rhinol. Laryngol.,1976
4. Secretory Otitis Media and its Sequelae;Dolan,1979
5. Facial Growth;Enlow,1990