TY  - RPRT
TI  - Multifrequency tympanometry. Preliminary experiences with a commercially available middle-ear analyzer.
AU  - B R Valvik
AU  - M Johnsen
AU  - E Laukli
DO  - 10.3109/00206099409071884
UR  - https://pubmed.ncbi.nlm.nih.gov/7818378/
ID  - 7818378
ER  -