1. Bartlett C, Pennings R, Ho A, Kirkpatrick D, Van Wijhe R, Bance M. Simple mass loading of the tympanic membrane to alleviate symptoms of patulous Eustachian tube. J Otolaryngol Head Neck Surg. 2010;39:259–68.
2. Alper CM, Swarts JD, Singla A, Banks J, Doyle WJ. Relationship between the electromyographic activity of the paratubal muscles and eustachian tube opening assessed by sonotubometry and videoendoscopy. Arch Otolaryngol Head Neck Surg. 2012;138:741–6.
3. Smith ME, Scoffings DJ, Tysome JR. Imaging of the Eustachian tube and its function: a systematic review. Neuroradiology. 2016;58(6):543–56.
4. Bluestone CD. Eustachian Tube. Structure, Function, Role in Otitis Media. Raleigh: BC Decker Inc.; 2005.
5. Poe, DS, Gopen, Q. Eustachian Tube Dysfunction. In: Ballenger’s Textbook of Otolaryngology, Wackym, PA (Eds), BC Decker, Toronto 2008.