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. Author manuscript; available in PMC: 2015 May 21.
Published in final edited form as: J Med Speech Lang Pathol. 2012 Dec;20(4):127–132.

Figure 1.

Figure 1

Mean lip aperture spatiotemporal index (STI) in pop, puppet, and puppypop. CAS = childhood apraxia of speech; SD = speech disorder; TD = typically developing.