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Parent-Child Interaction (PCI): Side view of the infant seated facing their parent. At each age, dyads received three toys (1) a wooden puzzle with eight cut-out shapes depicting a farmer and farm animals, (2) a toy piano with eight colored keys, and (3) four large plastic, colored blocks that interconnected (Legos). The authors received signed consent for the caregiver’s and child’s likenesses to be published in this article.
