%0 Journal Article %T Sonotubometry: A Useful Tool to Measure Intra-individual Changes in Eustachian Tube Ventilatory Function %A van Heerbeek, Niels %A van der Avoort, Stijn J. C. %A Zielhuis, Gerhard A. %A Cremers, Cor W. R. J. %J Archives of Otolaryngology–Head & Neck Surgery %V 133 %N 8 %P 763-766 %@ 0886-4470 %D 2007-08-01 %I American Medical Association %~ DeepDyve