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State of Michigan. (n,d.). Social & Emotional Development Milestones for Toddlers (1-3 Years). https://www.michigan.gov/mikidsmatter/parents/toddler/social

Zero to Three. (2024). Maternal Mental Health and Prenatal Brain Development: A Proven Link. https://www.zerotothree.org/resource/maternal-mental-health-and-prenatal-brain-development-a-proven-link/