Professor Emeritus of Communication Sciences and Disorders, University of Wisconsin …

Professor Emeritus of Communication Disorders, University of Nebraska, Lincoln

Professor of Speech Pathology

MGH Institute of Heath Professions; Harvard University

Czech Technical University in Prague; Charles University in Prague

Research Speech-Language Pathologist, Walter Reed National Military Medical Center

Professor of Communication Disorders, Brigham Young University

Munroe-Meyer Institute, University of Nebraska Medical Center

Bowling Green State University

Mayo Clinic