2) Logemann, J. A., Kahrilas, P. J., Begelman, J., et al.: Interactive computer program for biomechanical analysis of videoradiographic studies of swallowing. Am. J. Roenygenol., 153: 277-280, 1980.
3) Ohmae, Y., Logemann, J. A., Kaiser, P., et al.: Effect of two breath holding maneuvers on oropharyngeal swallow. Ann. Otol. Rhinol. Laryngol., 105: 123-131, 1996.
5) Tracy, J., Logemann, J. A., Kahrilas, P. J., et al.: Preliminary observation on the effects of age on oropharyngeal deglutition. Dysphagia, 4: 90-94, 1989.