1. Office visits to pediatricians;Koch,1974
2. Hearing, speech, and language sequelae of otitis media with effusion;Wright;Pediatr Ann,1991
3. Acute otitis media: One year in general pediatric practice;Howie;AJDC,1983
4. Current estimates from the national health interview survey;Vital and Health statistics,1990
5. Tympanometry and secretory otitis media;Fiellau;Acta Otolaryngol,1983