References
- Flisberg K., Ingelstedt S., Örtegren U. Controlled ‘ear aspiration’ of air. A ‘physiological’ test of the tubal function. Acta oto-laryng., Stockh. Suppl. 1963; 182: 35–42
- Holmquist J. Eustachian tube function assessed with tympanometry. Acta oto-laryng., Stockh. 1969; 68: 501–508
- Ingelstedt S., Örtegren U. Qualitative testing of the Eustachian tube function. Acta oto-laryng., Stockh., Suppl. 1963; 182: 7–23
- Lidén G., Peterson J., Björkman G. Tympanometry. A method for analysis of middle ear function. Acta oto-laryng., Stockh. Suppl. 1969; 263: 218–224
- Thomsen K. A. Investigations on the tubal function and measurement of the middle-ear pressure in pressure chamber. Acta oto-laryng., Stockh. Suppl. 1958; 140: 269–278