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STUDY DESIGN Magnetic resonance images were obtained of the lumbar spines of three volunteers in neutral, flexed, and extended postures. OBJECTIVES To measure migration of the nucleus pulposus within the intervertebral disc during flexion and extension of the spine in living people. SUMMARY OF BACKGROUND DATA Results of experiments on bisected cadaveric(More)
Rettig for their time and support in this study. iii ABSTRACT The purpose of this study was to determine if speech language pathologists could reliably identify different perceptual variants of adductor spasmodic dysphonia (ADSD) using a classification system proposed by Bastian (2009). Audio samples of sustained vowel phonation, sentence production,(More)
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