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Rapid reduction of lengthy pausing during vocal responding by nonverbal retarded children |
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| Authors: | Fredric Lester Singer Robert Pasnak Philip W Drash Richard Baer |
| Institution: | Catholic University of America Washington, D. C., NE 20064, USA;George Mason University Fairfax, VA 22030, USA;John F. Kennedy Institute Baltimore, MD 21205, USA |
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