TY  - RPRT
TI  - Tympanometric pattern classification in relation to middle ear effusions.
AU  - Q C Beery
AU  - W S Andrus
AU  - C D Bluestone
AU  - E I Cantekin
DO  - 10.1177/000348947508400109
UR  - https://pubmed.ncbi.nlm.nih.gov/1111435/
ID  - 1111435
ER  -