The Eustachian tube / ed. by Jacob SadéLate health effects of radiation for eustachian tube dysfunction : a non-concurrent prospective study / door Pieter Gerrit VerduijnMorphological and functional aspects of the eustachian tube of the rat / Jozef Jan Stephanus MulderEustachian tube function : some pathophysiological aspects and effects of intervention / Niels van HeerbeekDe buis van Eustachius als Zwarte Piet / J.J. GroteSonotubometry : measurement of Eustachian tube function / S.J.C. van der AvoortExperimental obstruction of the Eustachian tube : a contribution to knowledge of the pathogenesis of secretory otitis media / door Johan Marinus Herman van der Beek