The purpose of this study is to find the relationship between the stage and quality of developmental delay during infancy and toddler age, and the final diagnosis that the child gets a few years later (MR, type of PDD, CP or comorbidity of a few disorders).
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
level of Mental retardation in older age
Timeframe: non