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CELF-4 standard scores (Core Language composite, Receptive Language index, Expressive Language index) at visit 1 (dark gray bars) and visit 2 (light gray bars) are shown for 12 children with typical language development (TLD; left) and 21 language-learning impaired children (LLI; right). While there were no significant changes in oral language performance in the TLD group, all CELF-4 scores in the LLI group increased considerably from visit 1 to visit 2 (*).
