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In this addendum to my lead article for this forum, I will resist the temptation to reply to each point of disagreement raised by my colleagues in their commentaries or to emphasize crucial points of agreement. Instead, I will update and clarify my comments on the application of phonological principles to the treatment of children with phonological disorders, responding to their comments only where appropriate to reach these objectives.
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Marc E. Fey (1992) studied this question.
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