TY  - RPRT
TI  - Middle-ear pressure and eustachian tube function.
AU  - H Virtanen
AU  - T Marttila
PY  - 1982
DO  - 10.1001/archotol.1982.00790600010003
UR  - https://pubmed.ncbi.nlm.nih.gov/7150069/
ID  - 7150069
ER  -