@misc{indiciaec5643c211198, title = {Measurement of eustachian tube function using sonotubometry.}, author = {J Holmquist and G Björkman and L Olén}, year = {1981}, doi = {10.3109/01050398109076159}, url = {https://pubmed.ncbi.nlm.nih.gov/7209371/}, note = {Source identifier: 7209371} }