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9780323024525
Joseph R. Duffy, PhD, BC-NCD: Section of Speech Pathology, Department of Neurology, Mayo Clinic, Professor, Speech Pathology, Mayo Clinic College of Medicine, Rochester, MinnesotaDuffy, Joseph R. is the author of 'Motor Speech Disorders Substrates, Differential Diagnosis, and Management', published 2005 under ISBN 9780323024525 and ISBN 0323024521.
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