TY  - RPRT
TI  - [Clinical study on sweep-frequency tympanometry--data analysis using principal component analysis].
AU  - T Terada
PY  - 1989
DO  - 10.3950/jibiinkoka.92.923
UR  - https://pubmed.ncbi.nlm.nih.gov/2809864/
ID  - 2809864
ER  -